When the CIA discovers one of its agents leaked information that cost more than 100 people their lives, veteran operative Henry Pelham is assigned to root out the mole with his former lover and colleague Celia Harrison.

The widowed Duchess of Malfi longs to marry her lover, the steward Antonio. But her rancorous brothers, Ferdinand and the Cardinal, are implacably opposed to the match. When their spy, Bosola, discovers that the Duchess has secretly married and carries Antonio’s child, they exact a terrible and horrific revenge.