A young man returns from Rome to his sister's satanic New York apartment house.
Renowned gunman Richard Martin is traveling on a train, held up by Billy Kane, a former student of Martin's. Kane spares Martin, but only after shooting his hands. Years later, Martin meets an escaped convict, wrongly convicted for the train robbery. Martin trains his new student and both men seek out Billy Kane.
Jeanne lives in Paris and believes she is the reincarnation of Don Juan. She visits a priest and tells him she has killed a man. He comes to her elegant flat - her father has died leaving her rich - and she tells the priest stories about men she has seduced. The seduction is easy, she tells him, it's destruction that takes planning. We watch her with an upright elected official, a wealthy boor, and a folk singer. She describes herself as a spider. Her friend Léporella tries to be Jeanne's conscience. What does Jeanne want?
