Theresa Russell is the title character, a cunning woman who marries millionaires, poisons them, and inherits their fortunes before disappearing and resurfacing in search of new victims. Alexandra Barnes (Debra Winger), a researcher for the Justice Department who has never had much luck
with men, begins to track the deaths, convinced that the widows are all the same person. She travels to Seattle, where she talks to a newlywed philanthropist (Nicol Williamson) just before Russell does him in. Determined to catch her in the act, Winger goes to Hawaii. Posing as a secretary, she
becomes Russell's friend and falls in love with her next victim (Sami Frey), causing the l...