Diabolical

Watch Diabolical Online

Thursdays, 10:00 PM ET on Investigation Discovery

60 minutes

These murders were no accident. Committed with extreme premeditation - many were months or even years in the making. Riddled with psychological suspense, law enforcement must tap into the minds of chilling killers as they search for clues within the perfect murder.

Thursdays, 10:00 PM ET on Investigation Discovery

60 minutes

These murders were no accident. Committed with extreme premeditation - many were months or even years in the making. Riddled with psychological suspense, law enforcement must tap into the minds of chilling killers as they search for clues within the perfect murder.

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Watch Diabolical Season 1 Episode 10 - One Mistress More

11 watches

0 reviews

s1e10 One Mistress More
May 17, 2018
Devious masterminds who use their wits and wiles to get away with murder.
Season Finale
First Episode
Watch Diabolical Season 1 Episode 1 - Lying for Love

16 watches

0 reviews

s1e1 Lying for Love
January 1, 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.
Series Premiere
Watch Diabolical Season 1 Episode 1 - Lying for Love
s1e1 Lying for Love
January 1, 2018
January 1, 2018
Lying for Love
Series Premiere
Watch Diabolical Season 1 Episode 2 - Til' Death Do We Part
s1e2 Til' Death Do We Part
March 22, 2018
March 22, 2018
Til' Death Do We Part
Watch Diabolical Season 1 Episode 3 - Who Lies Beneath
s1e3 Who Lies Beneath
March 29, 2018
March 29, 2018
Who Lies Beneath
Watch Diabolical Season 1 Episode 4 - Best of Friends
s1e4 Best of Friends
April 5, 2018
April 5, 2018
Best of Friends
Watch Diabolical Season 1 Episode 5 - Mother of All Murders
s1e5 Mother of All Murders
April 12, 2018
April 12, 2018
Mother of All Murders
Watch Diabolical Season 1 Episode 6 - Family or Foe
s1e6 Family or Foe
April 19, 2018
April 19, 2018
Family or Foe
Watch Diabolical Season 1 Episode 8 - Weeping Widow
s1e8 Weeping Widow
May 3, 2018
May 3, 2018
Weeping Widow
Watch Diabolical Season 1 Episode 10 - One Mistress More
s1e10 One Mistress More
May 17, 2018
May 17, 2018
One Mistress More
Season Finale

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5 star rating
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4 star rating
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5 star rating
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4 star rating
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5 star rating
2 ratings (average: 4.5)