Richard Burrows is a medical student with a pregnant wife, Jody, who becomes unappealing to him before and after childbirth, abstaining from sex and gaining weight. When her mother moves in with them, Richard's home life frustrates him even more. Flirtations with nurses and patients begin, with Jody catching him being unfaithful. But after he becomes a surgeon at a Los Angeles hospital, the infidelity continues. Richard meets a married model, Helene Donnelly, and begins meeting her secretly in motels. They contemplate getting divorces.