Boston theatrical director Thomas Smith is having an affair with Danish nurse Eva when he becomes involved with Irene, the lustful wife of Jason Porter, an actor playing the lead role in Smith's new play about the death of Socrates. Meanwhile, Jason, an atheist, meets Mary, a prostitute with religious obsessions. Walking in a cemetery with Mary, Jason taunts her by lying in a grave and blaspheming--then he suddenly dies of a heart attack. Terrified, Mary runs from the cemetery, encounters actor Duncan Cartwright, whom she believes to be Jesus Christ, and falls into religious ecstasy. Dr. Zimmerman, Mary's psychiatrist, also runs into Cartwright and has a similar religious experience, believing the actor to be Sigmund Freud. A motorcycle accident that leaves Irene dead and Smith unconscious and paralyzed prompts Eva to disconnect his heart-and-lung machine to end his misery. Unable to cope with her guilt, Eva wanders into a playground where a group of children push her in a swing until she is happy again, not knowing that Dr. Zimmerman has scheduled a lobotomy for her.