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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.

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.

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.

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.

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.

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.