Diabolical backdrop
Crime•Documentary

The Best Episodes of Diabolical

Every episode of Diabolical ranked from best to worst. Let's dive into the Best Episodes of Diabolical!

Binge this in 21h 0m•Peaking at 7.6/10

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 mistake. Someone may look perfect on the outside, but even

Airs on
Investigation Discovery
BestEpisodes
WorstEpisodes
BestSeasons
AllEpisodes

Seasons3

All123

Episode Rankings

  1. #1 Fan Favorite
    Click to reveal
    Diabolical Season 1 Episode 2 - Lying For Love
    7.6/10(8 votes)

    #1 - Lying For Love

    S1:E2

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  2. Diabolical Season 1 Episode 1 - Mistress Roulette
    0.0/10(0 votes)

    #2 - Mistress Roulette

    S1:E1

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  3. Diabolical Season 1 Episode 3 - 'Til Death Do We Part
    0.0/10(0 votes)

    #3 - 'Til Death Do We Part

    S1:E3

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  4. Diabolical Season 1 Episode 4 - Who Lies Beneath
    0.0/10(0 votes)

    #4 - Who Lies Beneath

    S1:E4

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  5. Diabolical Season 1 Episode 5 - Best Of Friends
    0.0/10(0 votes)

    #5 - Best Of Friends

    S1:E5

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  6. Diabolical Season 1 Episode 6 - Mother Of All Murders
    0.0/10(0 votes)

    #6 - Mother Of All Murders

    S1:E6

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

    7. Trending NowTRENDING NOW

    The 20 WORST Episodes of Diabolical

    READ
  7. Diabolical Season 1 Episode 7 - Family Or Foe
    0.0/10(0 votes)

    #7 - Family Or Foe

    S1:E7

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  8. Diabolical Season 1 Episode 8 - Accident Waiting To Happen
    0.0/10(0 votes)

    #8 - Accident Waiting To Happen

    S1:E8

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  9. Diabolical Season 1 Episode 9 - Weeping Widow
    0.0/10(0 votes)

    #9 - Weeping Widow

    S1:E9

    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:Unknown
    Writer:Rebecca Ratliff Cameron

    Be the first to start the conversation for this episode

  10. Diabolical Season 1 Episode 10 - Living Off The Dead
    0.0/10(0 votes)

    #10 - Living Off The Dead

    S1:E10

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  11. Diabolical Season 2 Episode 1 - Mother Of All Lies
    0.0/10(0 votes)

    #11 - Mother Of All Lies

    S2:E1

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  12. Diabolical Season 2 Episode 2 - Who Needs Enemies
    0.0/10(0 votes)

    #12 - Who Needs Enemies

    S2:E2

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  13. Diabolical Season 2 Episode 3 - Someone's Lying
    0.0/10(0 votes)

    #13 - Someone's Lying

    S2:E3

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  14. Diabolical Season 2 Episode 4 - Recording Evil
    0.0/10(0 votes)

    #14 - Recording Evil

    S2:E4

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  15. Diabolical Season 2 Episode 5 - Queen Of Deception
    0.0/10(0 votes)

    #15 - Queen Of Deception

    S2:E5

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  16. Diabolical Season 2 Episode 6 - Control Freak
    0.0/10(0 votes)

    #16 - Control Freak

    S2:E6

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  17. Diabolical Season 2 Episode 7 - The Rich Get Richer
    0.0/10(0 votes)

    #17 - The Rich Get Richer

    S2:E7

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  18. Diabolical Season 2 Episode 8 - A Life Of Lies
    0.0/10(0 votes)

    #18 - A Life Of Lies

    S2:E8

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  19. Diabolical Season 2 Episode 9 - Murder Is No Accident
    0.0/10(0 votes)

    #19 - Murder Is No Accident

    S2:E9

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  20. Diabolical Season 2 Episode 10 - When All Else Fails
    0.0/10(0 votes)

    #20 - When All Else Fails

    S2:E10

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  21. Diabolical Season 3 Episode 1 - Daddy's Little Nightmare
    0.0/10(0 votes)

    #21 - Daddy's Little Nightmare

    S3:E1

    In 2017, Federal Heights, CO, is filled with fear when 69-year-old veteran Bill Mussack is reported missing, gone without a trace; police act fast to uncover a diabolical killer with a heinous plot before the malicious murderer strikes again.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  22. Diabolical Season 3 Episode 2 - Hands That Rob the Cradle
    0.0/10(0 votes)

    #22 - Hands That Rob the Cradle

    S3:E2

    In early 1980, two eerily similar crimes occur 400 miles apart; they both leave young mother dead and an infant child stolen; years later, police unravel a plot so cold-blooded, it leaves everyone even seasoned homicide detectives in utter shock.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  23. Diabolical Season 3 Episode 3 - Masking Evil
    0.0/10(0 votes)

    #23 - Masking Evil

    S3:E3

    A burning car is found by the side of a highway on the same night a single mother of two is reported missing; the two events are related and connecting the dots leads investigators to a notorious criminal who has been hiding in plain sight.

    Director:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  24. Diabolical Season 3 Episode 4 - Lie For Me
    0.0/10(0 votes)

    #24 - Lie For Me

    S3:E4

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

  25. Diabolical Season 3 Episode 5 - Sins of a Mother
    0.0/10(0 votes)

    #25 - Sins of a Mother

    S3:E5

    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:Unknown
    Writer:Unknown

    Be the first to start the conversation for this episode

Best Episodes Summary

"Lying For Love" is the best rated episode of "Diabolical". It scored 7.6/10 based on 8 votes. Directed by Unknown and written by Unknown, it aired on 3/15/2018. This episode scored 7.6 points higher than the second highest rated, "Mistress Roulette".