Every season of Diagnosis: Murder ever, ranked from best to worst by thousands of votes from fans of the show. The best seasons of Diagnosis: Murder!

A priest kills his would-be blackmailers and does everything he can to cover his tracks. Dr. Sloan investigates when details don't quite add up.

Miracle Cure

Security is increased at the hospital when Senator Robert Bassett undergoes an operation. Drs. Sloan and Stewart are preoccupied when a beautiful young amnesia patient is brought in. Unbeknownst to them, their beautiful young patient is a professional killer.

Amnesia

When an abrasive, washed-up comic is found dead at a Community General benefit telethon, suspicion is cast on everyone from his son to his former writers.

Murder at the Telethon

Mark's cousin, Jonathan Nash, bequeaths his million-dollar fortune to Community General Hospital. His three dastardly children are the main suspects after Nash dies suspiciously... before he has a chance to alter his will.

Inheritance of Death

After a dying man gives Dr. Sloane a winning lottery ticket, the deceased's family and creditors swarm him, claiming the ticket is theirs.

The 13 Million Dollar Man

A group of crooked cops frame Steve for murder after he gets too close to their robbery operation. Jack visits some past friends, now mobsters, to dig up information.

Vanishing Act (1)

The same gang involved in the Schroeder murder kidnaps Mark's underworld friend, Gus Benedict. Jack and Mark try to save Benedict before time runs out.

Vanishing Act (2)

Dr. Sloan treats a famous singer,then takes her into his home as a homicidal closes in.

Shanda's Song

Financier Robin westlin dies in Dr. Sloan's house, but when the paramedics at the scene, the body's gone. Everyone is certain the event was a figment of Mark's imagination. Dr. Sloan goes on a quest to validate his theory.

The Restless Remains

A team of Magicians Clark & Madison, breaks up when Paul Madison decides to go solo.  Mark jumps to his friend Clark's aid when Madison turns up dead with Eddie Clark the main suspect.

Murder with Mirrors

Steve's latest girlfriend, a dance instructor, is a suspect in a murder investigation when a dance club's owner dies mysteriously.

Flashdance with Death

A tell-all book written by one of Amanda's vindictive old college roommates contains embarrassing secrets of all four roommates. Dr. Sloan tries to discover what happened when the author is found dead and Amanda is the main suspect.

Reunion with Murder

A prostitute, who tells Jack of her plans to blackmail her clients, is found dead of an apparent drug overdose. Dr. Sloan interviews her clients to discover the real cause of death.

Lily

An unhappy politician's wife guns down her husband in an underground garage. Mark sees through her alibi and attempts to confirm his suspicions.

Guardian Angel

Chet Brooks, one of Jack's old friends, shows up on the run from gamblers, begging for help. Jack reluctantly loans Chet his car, only to have Chet and the car explode in a fiery wreck. Jack tangles with the underworld to find out what happened.

Nirvana

A convict, being treated at County General, manages to take a hostage and demand news coverage. When the newscaster covering the event is shot down, Dr. Sloan takes it upon himself to figure out what went wrong.

Broadcast Blues

A Los Angeles earthquake apparently causes an armoire to topple over on top of a good friend of Dr. Sloan's, Martin Garfield, killing him. The dry-eyed Sloan goes to work and discovers that Garfield may have been killed before the earthquake. Jack and Amanda help Mark weed through the wealthy family to find the murderer.

Shaker

A gangland 'protector' under surveillance by Steve becomes infected with the plague when a medicine bottle is mysteriously switched. Dr. Sloan tries to find the source of the virus before the murderer starts an epidemic.

The Plague

Dr. Sloan goes undercover at a convent when mysterious circumstances surround a murder.

Sister Michael Wants You

Dr. Sloan is under suspicion after his tax preparer is killed with Mark spotted 'hovering' over the body.

Many Happy Returns

Suspicion is cast on Norman Briggs after the chairman of a philanthropical medical group of which Norman is a part, is murdered. Steve and Mark attend the funeral to nail the culprit, who promptly falls over dead.

A Very Fatal Funeral

Two women involved in a love triangle plot to murder a man, take his millions, and leave the country. Dr. Sloan investigates after his friend's mysterious disappearence.

Woman Trouble

Dr. Sloan's birthday is less than festive when he discovers the body of a prominent divorce lawyer in the Hospital pharmacy. When Steve arrives, the body is nowhere to be found. Mark and Jack work feverishly to find the body, find the culprit, and lead a tour of potential investors all at the same time.

The Busy Body

A famous actress, a patient at Community General, is implicated in the murder of one of her four ex-husbands. Against everyone's advice, Mark believes in her innocence and sets out to prove it.

My Four Husbands

A cantankerous patient at Community General is given a double injection of his medication, eventually leading to his death. Jack suspects a doctor he's had a grudge against for a long time. Despite Mark's objections, Jack sets out to prove his ""enemy"" is the killer.

Murder Most Vial

At Jack's request, Mark operates on a Godfather-like mobster, Albert Bartell... and faces retribution from the man's son when Albert dies suddenly.

You Can Call Me Johnson

Jack and Steve vie for a young woman's affections as she leads them in an investigation of a PI's death.

Georgia on My Mind

A plastic surgeon dies due to an overdose of laughing gas... with no shortage of suspects. Mark campaigns furiously to exonerate Bonnie Valin, the victim's wife, while Steve makes a solid case against her. Meanwhile, Amanda's new electronic checking service is less than effective.

The Last Laugh (1)

Realizing that he's been duped, Mark goes all out to thwart the murderer's plans. Amanda and Jack go after Wallace Sterling, the crooked financier and art lover by selling a forged painting of a can of Cream of Celery soup.

The Last Laugh (2)

The body of a dead real estate agent is found in the walk-in closet of Mark's sister's new house. Mark and Steve have to work around Dora Sloan's annoying habits while investigating the murder.

Death By Extermination

The newly crowned boxing champion is found murdered shortly after the bout. Jack and Amanda investigate the deceased's former trainer, his opponent, and his opponent's manager to find a way through a web of lies and deceit.

Standing Eight Count

Mark has some unorthodox theories when several dead bodies are found drained of blood with puncture marks on their neck.

The Bela Lugosi Blues

When an unpopular actor on a hot new medical drama (being filmed at Community General) suddenly dies, Mark suspects everyone from the writer to other cast members.

The New Healers

A rash of murders made to look like suicide leads to a dating service and its beautiful customers.

Call Me Incontestable

One of Steve's old ""collars"" gets out of prison and comes looking for revenge.

A Blast From the Past

Dr. Sloan investigates the murder of an antagonistic pro volleyball player. Steve searches for an alleged stalker while Amanda and Jack keep an eye on her teammates, none of whom are particularly upset over her death.

Playing for Keeps

IRS Agent Gretchen McCord returns when her lifeguard nephew is accused of murder.

Sea No Evil

After Steve's night school law teacher is nearly run down in the parking lot, he and a paralegal investigate shady dealings in their law firm.

How to Murder Your Lawyer

When Amanda's friend Angela is kidnapped immediately after giving birth to quadruplets, Amanda feigns pregnancy and goes undercover at an adoption agency to locate Angela. Jack and Dr. Sloan try to care for the babies.

Naked Babes

Amanda wins a guest role on The Young and the Restless and walks right into a murder.

Death in the Daytime

The death of a popular musician raises suspicious questions. The musicians' pregnant wife, who claims to be carrying an alien's child, complicates matters.

My Baby is Out of this World

Ashley York murders her wealthy father and cleverly manipulates it to appear as though he killed himself. Dr. Sloan picks away at holes in the story, which leads him directly to Ashley.

An Innocent Murder

Dr. Sloan takes in an abandoned young girl found at the scene of a murder, while Steve and Jesse go about tracking down the killer.

Witness to Murder

The murder of a beautiful woman around a marine encampment raises suspicions. Dr. Sloan discovers more to her than meets the eye.

All-American Murder

Dr. Sloan suspects a cunning D.A. in the murder of an acquited defendant.

Murder in the Courthouse

A man wrongfully convicted of murder takes Dr. Sloan hostage. Dr. Sloan hears his story and works to prove the man's innocence. Jesse works feverishly to rescue Mark.

Murder on the Run (1)

Dr. Sloan shields George Karn from both Steve and Lt. Delaney while investigating his wife's murder.

Murder on the Run (2)

Steve heads up the investigation when a serial cop killer is on the prowl, while inadvertantly dating the killer.

Love is Murder

An exhausted Jesse, coming off a 48-hour stint in the hospital, witnesses a man die in the parking garage. Jesse returns with help only to find the man alive. While everyone believes Jesse to have been delirious, Jesse insists he was correct, and goes all out to prove himself.

Misdiagnosis Murder

Amanda's cousin falls to his death when his motorcycle suddenly veers off the road. Amanda leads the investigation when it's discovered her cousin was drugged immediately before the accident.

The Pressure to Murder

Dr. Sloan investigates a free health clinic after several homeless people turn up dead... with missing organs.

Living on the Streets Can Be Murder

Dr. Sloan tries to solve a friend's murder while Steve investigates the deceased's ex-wife and her identical twin sister.

Murder Murder

A visiting surgeon must deal with his alcoholism after a fellow doctor is murdered during one of his blackouts.

Murder in the Dark

When a photo shop erroneously sends Dr. Sloan the wrong set of photographs, he becomes embroiled in the murder investigation of an escort girl. Meanwhile, Amanda's baby is about to come to term.

35 Millimeter Murder

In an episode reminiscent of Hitchcock's 'Strangers on a Train'", Dr. Sloan is drawn into a murder pact by a psychiatrist in need of money. The psychiatrist kills a woman pestering Dr. Sloan, expecting Mark to eliminate his 'problem'".

The Murder Trade

Jesse is attracted to a beautiful psychic, who also happens to be the prime suspect in a murder. Amanda copes with the trials of motherhood.

Mind Over Murder

The daughter of one of Mark's friends writes a juicy tell-all expose of the most prominent public figures. Mark takes her in after a crazed stalker starts threatening her and her co-authors.

Murder by the Book

Mark investigates a perky morning television personalty for the murder of a Howard Stern-like radio host.

FMurder

Dr. Sloan is the executor of his friend, Preston Michael's, estate after Michaels is found in the body of a shark. Things turn interesting after traces of poison are found in Michaels' body and three women, all apparently married to Michaels, attend the reading of the will.

Left-Handed Murder

One police officer is accidentally shot by another during a raid gone wrong. Dr. Sloan investigates the victim's wife, the shooter, and a conniving lawyer when he suspects foul play.

Murder by Friendly Fire

A burglar inadvertently becomes infected with a deadly virus. Dr. Sloan and Jesse are subsequently exposed to the virus after Jesse stumbles upon the thief's dead body. Both Mark and Jesse are confined to Mark's home while Steve and Amanda investigate the drug company that manufactured the virus, in the hopes of discovering an antidote before Jesse runs out of time.

Murder Can Be Contagious

A figure skater hires her ex-coach to attack a rival skater. Dr. Sloan tries to prove her guilt.

Murder on Thin Ice

Mark, Steve, et al, investigate a string of the so-called ""Casanova"" murders. Dr. Sloan loses his detached perspective when the killer begins calling Mark.

X Marks the Murder (1)

X Marks the Murder (2)

Dr. Sloan investigates a photographer, the overly protective mother of Jesse's friend's fiancÃ©e, in the murder of a private investigator.

A Model Murder

A respected cardiologist murders an innocent man in an insurance scam. Dr. Sloan reluctantly investigates his friend.

Murder Can Be Murder

A young undercover detective investigates a militia-type organization to solve a terrorist bombing witnessed by Mark. She has to decide whether to risk blowing her cover and warn Dr. Sloan of an attempt on his life or finish her assignment.

An Explosive Murder

A bus accident brings multiple victims into the hospital. Amanda does the bulk of the investigating when its discovered that a casualty in the accident was actually murdered.

Murder by the Busload

His scheming advisor covers up the accidental death of the drug-addicted daughter of a U.S. Senator. Dr. Sloan and Amanda investigate.

A Candidate for Murder

An ADA sets out on a vendetta against an Asian youth, against both Mark and Steve's advice, after a drive-by shooting at a high school leaves one teacher dead.

The ABC's of Murder

Mark's daughter returns after eight years, leaving an abusive husband who later turns up dead.

Murder in the Family

When a famous prostitute writes a tell-all book, an executive's job at Community General is in serious jeopardy.

In Defense of Murder

Mark investigates a 30-year old murder when the body of his old mentor is discovered entombed in a wall in the hospital.

A History of Murder

Jesse is arrested and charged with murder after a doctor testifying against Jesse in a malpractice suit is poisoned. Mark convinces his old friend, Ben Matlock, to defend Jesse.

Murder Two (1)

Amanda and Ben investigate the murder of Eric Spindler while Jesse continues to languish in jail.

Murder Two (2)

Mark aids an old friend, Joe Mannix, in solving a 25-year-old, unsolved murder.

Hard-Boiled Murder

When a musician is found murdered at a Country Music Awards ceremony, Dr. Sloan and company rush to find the culprit before the show ends and the crowd disappears.

Murder, Country Style

A devious psychologist uses hypnotism to facilitate his criminal acts, including the murder of his wife.

Delusions of Murder

An aggressive female pharmaceuticals representative stalks the hospital's new chief of staff after a one-night-stand, hoping to break up his marriage and have him all for herself.

A Passion for Murder

A beach boy involved with a gang member's sister is suspected of murdering him. Mark investigates.

Blood Brothers Murder

Dr. Sloan investigates when an unpopular colleague drops dead while performing an operation. Mark investigates his fellow doctors when tests reveal the deceased was poisoned.

Physician, Murder Thyself

Dr. Sloan and Amanda investigate when the co-pilot of the airplance carrying them to a medical conference is murdered and the remainder of the flight crew are incapacitated with a mysterious illness.

Murder in the Air

A wealthy woman and her boyfriend dupe Mark and plot to murder her husband.

The Merry Widow Murder

A bungling comedian seeks revenge on his former partner when he's cheated out of millions.

Comedy is Murder

Dr. Sloan is stalked by a mad bomber whom he helped incarcerate. Norman and Mark are the main dissenters in negotiations to sell the hospital to a corporate raider.

The Murder of Mark Sloan

Steve becomes embroiled in political intrigue after the murder of a city councilman's wife appears to be part of a larger political strategy. Steve investigates two mayoral candidates, the councilman and the chief of police, as well as a rogue detective and his partner, all with strong motives.

Murder Blues

Mark investigates when a teenage girl is murdered after threatening to reveal her affair with her older lover, a newly appointed state Supreme Court Justice.

Open and Shut

A Malibu Hills fire is the backdrop for rising tensions between the residents; a disgraced stockbroker, a naturalist, a worried father, and a land developer. A worried Dr. Sloan deals with his own parental fears when Steve helps fight the fire.

Malibu Fire

Community General is already under increased security, with a high-profile criminal hospitalized, when an important businesswoman is brought in. Mark suspects her security guard has deadly intentions.

Deadly Games

Jesse's new part-time job as trainer of the pro basketball Mustangs turns deadly when he's accused of murdering a star player.

Slam-Dunk Dead

Dr. Sloan investigates a plastic surgeon when an actress's death apparently results from an infection contracted during surgery.

Looks Can Kill

Mark and Amanda are assigned to the task force investigating an airplane crash. An adversarial FBI agent and Russian mobsters make their assignment more difficult.

Fatal Impact (1)

Steve and Ron lead the chase for the stolen nuclear material.

Fatal Impact (2)

The Sloans run into plenty of industry politics when they investigate the death of television network executive, Rachel Woodrall. Seamy revelations about Woodrall's college sorority lead to the killer.

Must Kill TV

Jesse finally reunites with his father. After they narrowly elude an assassin, Jesse begins to realize his father isn't the accountant he's always claimed to be, but rather a spy. The Travis's attempt to discover who's sending the killers.

Discards

A dead mime leads to an investigation of a crooked auto dealer. Randy Wolfe, a woman who's apparently an expert at everything, leads the investigation while continually annoying Steve.

A Mime is a Terrible Thing to Waste

A motorcycle stunt driver has a fatal accident while filming an action video. Steve investigates.

Down and Dirty Dead

When Steve is shot and falls into a coma, Mark does all in his power to find the assailant, even threatening a suspect with bodily harm. Mark finds himself the prime suspect when Steve's alleged attacker, Gordon Ganza, is murdered and all clues point directly towards Dr. Sloan.

Retribution (1)

This episode takes place four months after Mark was convicted of murder. Steve is slowly recovering from his wounds and Mark is still rotting in prison. While Mark endures the taunts of fellow death row inmate Malcolm Trainor, Steve and Tanis Archer launch a rogue investigation to find Ganza's real killers.

Retribution (2)

A hospital emergeny preparedness drill turns deadly when an unpopular and ambitious nurse is found dead amid the chaos with an eccentric artist the only witness.

Drill for Death

Dr. Mark Sloan is a good-natured, offbeat physician who is called upon to solve murders.

The Best Seasons of Diagnosis: Murder

The Best Seasons of Diagnosis: Murder

Season 4

Season 5

Season 3

Season 7

Season 8

Season 6

Season 2

Season 1