Alain comes to meet his wife Lisa in Deauville. When he arrives, he surprises her in the arms of a lover. He doesn't make a fuss, refuses any explanation and goes back on the road. He quickly decided to forgive this misdemeanour and turned back. He finds the villa deserted. Lisa left without leaving an address. On the road back to Paris, he hitchhiked to a young couple to whom he told about their romantic setbacks. Jacques and Fabienne invite her to join their community. Alain discovers a liberated and shared sexuality. But the memory of Lisa remains. Unable to stand it any longer, Alain goes back in search of his beloved...