Jerry is a professional golfer. When a woman named Diana recognizes how much Jerry hates a rival player, Mike, she offers to commit murder if Jerry will do likewise for her.
The person she wants killed is Dr. Haggis, a psychiatrist who believes Diana to be dangerously disturbed and wants her institutionalized. Jerry doesn’t take Diana seriously until she runs down Mike with a golf cart, then beats him to death with one of Jerry’s clubs.
Threatening to give the murder weapon to the police, Diana insists that Jerry now get rid of the doctor. He doesn’t know what to do, consulting estranged wife Lee while looking for a way out. The longer he delays doing Diana’s murder, the angrier she gets, eventually attacking Lee.