7.1/1019 votes#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
- 7.3/1018 votes
#2 - 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
- 7.9/1021 votes
#3 - '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 votes
#4 - 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
- 7.5/1017 votes
#5 - 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
- 7.7/1019 votes
#6 - 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
- 7.6/1019 votes
#7 - 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
- 7.3/1017 votes
#8 - 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
- 7.9/1021 votes
#9 - 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
- 7.8/1023 votes
#10 - 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
The Best Episodes of Diabolical Season 1
Every episode of Diabolical Season 1 ranked from best to worst. Discover the Best Episodes of Diabolical Season 1!
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
Season 1 Ratings Summary
"Mistress Roulette" is the best rated episode of "Diabolical" season 1. 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 is rated 0.2 points higher than the second-best, "Lying For Love".