Season 1
Episode 1 - Diabolical Season 1 Episode 1
Episode 2 - Diabolical Season 1 Episode 2
Episode 3 - Diabolical Season 1 Episode 3
Episode 4 - Diabolical Season 1 Episode 4
Episode 5 - Diabolical Season 1 Episode 5
Episode 6 - Diabolical Season 1 Episode 6
Episode 7 - Diabolical Season 1 Episode 7
Episode 8 - Diabolical Season 1 Episode 8
Episode 9 - Diabolical Season 1 Episode 9
Episode 10 - Diabolical Season 1 Episode 10
Season 2
Diabolical
Calculating. Cunning. Cold as ice. In Diabolical, a new gripping ten-episode series on Investigation Discovery, these shockingly devious masterminds use their wits and wiles to manipulate us, seduce us and try to get away with murder.