Black Widow bears no relation to the 1954 film of the same name--beyond its characterization of the female as the deadlier of the species, that is.
Debra Winger stars as a federal agent who has sworn to bring
Theresa Russell to justice. Ms. Russell has married several millionaires who have all died mysterious deaths, for which she has remained undetected because she has assumed a number of different identities. Ms. Winger is the only person in her department who suspects that all of the deceased millionaires' widows are the same person. Finally tracking down Russell, Winger finds herself inexorably becoming friends with the charming murderess. ~ Hal Erickson, All Movie Guide