Louis, a rich man who lives quietly with his beautiful young wife, Julie, in St Tropez, has cardiac and alcohol problems. They sleep in separate rooms and, when she meets Jeff, a writer, she has an affair with him. They decide that she will kill Louis and that Jeff, after dumping the body off a boat, will lie low in Italy. To her dismay, Jeff disappears and, with him, all of Louis’ money. She is left without husband, lover or assets and under police surveillance. Then Louis reappears, alive, fit, alcohol-free and ready to forgive her.