 On entering her bathroom, Luisa finds a naked man showering. She calls the police at once and the man is arrested. At the police station Alberto, a psychiatrist, recognizes the man: he is Paolo, the husband of Luisa. Alberto offers himself to help Paolo in solving his problem, but when the two men arrive at home, Paolo still in his bathrobe, Luisa hugs Alberto and calls him Paolo. What to do? The two men try a series of way to help Luisa to recover her memory, till the last, but not too much unsuspected, surprise.