7.1/1019 votesLoading...#1 - Mistress Roulette
Season 1 Episode 1 - Aired 1/1/2018
Married family man Dr. Adam Frasch has a booming practice, and he loves to spend money on houses, automobiles and exotic dancers; ultimately, the doctor will reap what he sows in deceit and jealousy.
Director: N/A
Writer: N/A
- 7.1/1013 votesLoading...
#2 - Control Freak
Season 2 Episode 6 - Aired 6/18/2019
Donna Scrivo hasn't seen her adult son, Ramsay, in days, and she's worried; she alerts the police, but days pass with no sign of him anywhere; then the discovery of a severed head and body parts along a highway reveals an act of shocking violence.
Director: N/A
Writer: N/A
- 7.3/1018 votesLoading...
#3 - Lying For Love
Season 1 Episode 2 - Aired 3/15/2018
Temptress Cathy Cousin moves in next door to devoted family man Tim Koile, wrapping him around her finger and convincing him to satisfy her every whim no matter how diabolical.
Director: N/A
Writer: N/A
- 7.3/1017 votesLoading...
#4 - Accident Waiting To Happen
Season 1 Episode 8 - Aired 4/26/2018
Single mom Rainey Morin thinks she has found her one and only soulmate in Robert Kowalski. However, beneath his bright veneer is a dark history threatening to wreak havoc upon her life and those around her.
Director: N/A
Writer: N/A
- 7.3/1012 votesLoading...
#5 - Evil Sister Act
Season 3 Episode 10 - Aired 5/12/2020
When Samuel Johnson Jr. suddenly vanishes, investigators find themselves face-to-face with two sisters who know something; through a series of interrogations, they reveal an elaborate murder plot meticulously engineered by a puppeteer.
Director: N/A
Writer: N/A
- 7.5/1017 votesLoading...
#6 - Best Of Friends
Season 1 Episode 5 - Aired 4/5/2018
After sneaking out to attend a party, 19-year-old Jose Najera returns home to find both of his parents dead in their bedroom. It is unclear if it is a random killing or a botched robbery.
Director: N/A
Writer: N/A
- 7.5/1010 votesLoading...
#7 - Killer Track Record
Season 3 Episode 9 - Aired 5/5/2020
Three women die of the same mysterious illness, and the hunt is on to prove their deaths were no accident; investigators don't realize they're being played for fools by a sinister killer lurking undetected.
Director: N/A
Writer: N/A
- 7.6/1019 votesLoading...
#8 - Family Or Foe
Season 1 Episode 7 - Aired 4/19/2018
A young family is on an evening stroll when suddenly terror strikes. Nothing seems to add up during the investigation, it is not clear if it is random violence or a mastermind at work and the truth will take years to emerge.
Director: N/A
Writer: N/A
- 7.7/1019 votesLoading...
#9 - Mother Of All Murders
Season 1 Episode 6 - Aired 4/12/2018
Janet Lynn Mickey dreams of starting her own family and marries college football star Darrell Tyburski; plans change after the young couple begins having children, leading them down a very dark path.
Director: N/A
Writer: N/A
- 7.7/108 votesLoading...
#10 - Sins of a Mother
Season 3 Episode 5 - Aired 4/7/2020
In 1994, Lake Orion, MI, is rocked by a murder; at first, the crime is a mystery -- but in a small town where everyone knows each other, rumors start flying. Police soon expose a strange and twisted plot that no one saw coming.
Director: N/A
Writer: N/A
- 7.8/1023 votesLoading...
#11 - Living Off The Dead
Season 1 Episode 10 - Aired 5/10/2018
George Kalomeris is a family man who looks after the less fortunate in his community, then a dying man fingers Kalomeris as the shooter, and police discover a monster more diabolical than anyone could ever imagine possible.
Director: N/A
Writer: N/A
- 7.8/1015 votesLoading...
#12 - Mother Of All Lies
Season 2 Episode 1 - Aired 5/21/2019
In 2015, Detective Scott Sanderson finds himself investigating one of the strangest cases of his career, involving a missing woman and her newborn; before long, he uncovers a diabolical scheme that will destroy the lives of everyone it touches.
Director: N/A
Writer: N/A
- 7.8/1011 votesLoading...
#13 - Someone's Lying
Season 2 Episode 3 - Aired 5/28/2019
On April 17, 2015, a Virginia hunter makes a grisly discovery in the woods, finding a woman with an execution-style gun shot wound to the back of her head.
Director: N/A
Writer: N/A
- 7.8/1016 votesLoading...
#14 - Recording Evil
Season 2 Episode 4 - Aired 6/4/2019
Gina Coccia comes home from work to discover the bodies of her girlfriend, Lynn, and Lynn's nephew, Ronnie, shot and stabbed on the kitchen floor; the investigation leads police to a terrifying act of betrayal.
Director: N/A
Writer: N/A
- 7.8/1012 votesLoading...
#15 - Queen Of Deception
Season 2 Episode 5 - Aired 6/11/2019
In Susanville, CA, a beloved police officer is found dead in what looks like an apparent suicide, then detectives launch a full-blown murder investigation and zero in on the officer's wife as a possible suspect.
Director: N/A
Writer: N/A
- 7.8/1010 votesLoading...
#16 - The Rich Get Richer
Season 2 Episode 7 - Aired 6/25/2019
Penny Knell is admitted to a special care facility, where a devious mastermind is waiting to prey on vulnerable people; when Penny's family gets ensnared in her web, the consequences will be fatal.
Director: N/A
Writer: N/A
- 7.8/1013 votesLoading...
#17 - A Life Of Lies
Season 2 Episode 8 - Aired 7/2/2019
In Prichard, AL, loving father Re'Mano Campbell is found murdered in his home; it takes the cunning wit of local investigators to unravel the mystery of who murdered him.
Director: N/A
Writer: N/A
- 7.8/1014 votesLoading...
#18 - Murder Is No Accident
Season 2 Episode 9 - Aired 7/9/2019
A vivacious 33-year-old drowns in the middle of a crowded lake. The investigation untangles a dark, nefarious past that includes theft and multiple murders and detectives must take extraordinary measures to catch the killer.
Director: N/A
Writer: N/A
- 7.8/1010 votesLoading...
#19 - Lie For Me
Season 3 Episode 4 - Aired 3/31/2020
Air Force veteran Michael Giles disappears along with his savings of $206,000 and detectives find a that Kwaneta Harris has been draining his accounts.
Director: N/A
Writer: N/A
- 7.9/1021 votesLoading...
#20 - 'Til Death Do We Part
Season 1 Episode 3 - Aired 3/22/2018
Lyle and Carol Kopenskey are high school sweethearts who marry after graduation; after 40 years of marriage, one of them becomes involved in an extra-marital affair that leads to cold-blooded murder.
Director: N/A
Writer: N/A
- 7.9/1022 votesLoading...
#21 - Who Lies Beneath
Season 1 Episode 4 - Aired 3/29/2018
Valuing wealth more than love, Michelle Donohue casts aside good men before meeting Mr. Right who gives her a taste of her own medicine and sends her down a murderous path.
Director: N/A
Writer: N/A
- 7.9/1021 votesLoading...
#22 - Weeping Widow
Season 1 Episode 9 - Aired 5/3/2018
After losing her husband in a tragic accident, a God-fearing Cindy McKay claims she has to bend the law to pay off his illicit debts; authorities soon realize that Mckay is a criminal mastermind.
Director: N/A
Writer: Rebecca Ratliff Cameron
- 7.9/1013 votesLoading...
#23 - Who Needs Enemies
Season 2 Episode 2 - Aired 5/27/2019
A cold morning in December starts off like any other, then a farmer finds the body of a dead woman; what seems like a rape and murder case turns into a conspiracy, and someone's diabolical nature is soon revealed.
Director: N/A
Writer: N/A
- 8.0/1011 votesLoading...
#24 - Devil Wears False Eyelashes
Season 3 Episode 7 - Aired 4/21/2020
Three men die over a span of a dozen years, with no suspicion of wrongdoing and no files charged. But when a deadly car explosion rips through downtown Pensacola, FL, a new investigation begins; all suspicion points toward just one person.
Director: N/A
Writer: N/A
- 8.2/1010 votesLoading...
#25 - When All Else Fails
Season 2 Episode 10 - Aired 7/16/2019
After her home is invaded and her husband murdered, Shaunna Dodd recounts her harrowing ordeal at gunpoint; however, when investigators dig deeper, they uncover a tale of lies, infidelity and shady characters who have wandered into the Washoe Valley.
Director: N/A
Writer: N/A
The Worst Episodes of Diabolical
Every episode of Diabolical ranked from worst to best. Explore the Worst Episodes of Diabolical!
Like trying to decipher the value of a book without ever opening it, judging a person by his or her outward appearance can be a...
Genres:CrimeDocumentaryFamilyReality
Network:Investigation Discovery
Worst Episodes Summary
"Mistress Roulette" is the worst rated episode of "Diabolical". It scored 7.1/10 based on 19 votes. Directed by N/A and written by N/A, it aired on 1/1/2018. This episode scored 0.0 points lower than the second lowest rated, "Control Freak".