BLACK WIDOW

A young but lonely female Justice Department agent gets suspicious about what appears to be a pattern of deaths and picks up the trail of a cool, calculating and beautiful murderess, who marries wealthy men and then kills them to collect their wills. At first, the federal agent goes after the suspect for professional reasons, feigning friendship in hope of getting some evidence, but she quickly falls under the killer's potent spell herself, starting to feel a barely submerged sexual jealousy for the utterly confident seductress