Series synopsis
Diabolical is a Canadian crime documentary television series that premiered on Investigation Discovery on January 1, 2018. It stars Ross Huguet.
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 the most kind-hearted soul has a dark side looming. "Diabolical" is a docuseries that delves into the minds of murderers, asking a simple question: "Why did they do it?" The acts were committed with extreme premeditation -- many were months or even years in the making. Tension builds in each episode as law enfor ...
Premise
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 the most kind-hearted soul has a dark side looming. "Diabolical" is a docuseries that delves into the minds of murderers, asking a simple question: "Why did they do it?" The acts were committed with extreme premeditation -- many were months or even years in the making. Tension builds in each episode as law enforcement taps into the methods of devious masterminds, aided by insights from forensic psychologists and psychiatrists as well as criminal profilers.
Cast and characters
Leading cast
- Ross Huguet as Narrator (voice)
Guest cast
- William Cataldo as Self - Assistant Prosecutor, Macomb County, MI
- Kerrie Droban as Self - True Crime Author
- Leslie Rule as Self - Co-Author, 'Lying in Wait'
Episodes
This series spans 3 seasons with 30 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 10 | January 1, 2018 | May 10, 2018 |
| Season 2 | 10 | May 21, 2019 | July 16, 2019 |
| Season 3 | 10 | March 10, 2020 | May 12, 2020 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Mistress Roulette 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. |
January 1, 2018 |
| 2 |
Lying For Love 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. |
March 15, 2018 |
| 3 |
'Til Death Do We Part 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. |
March 22, 2018 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Mother Of All Lies 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. |
May 21, 2019 |
| 2 |
Who Needs Enemies 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. |
May 27, 2019 |
| 3 |
Someone's Lying 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. |
May 28, 2019 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Daddy's Little Nightmare 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. |
March 10, 2020 |
| 2 |
Hands That Rob the Cradle 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. |
March 17, 2020 |
| 3 |
Masking Evil 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. |
March 24, 2020 |
Production
Release
| Original network/platform | Investigation Discovery |
|---|---|
| First aired | January 1, 2018 |
| Last aired | May 12, 2020 |
| Runtime | 42 minutes |
| Status | continue |
| Schedule | Tuesday at 21:00:00 |