The misadventures and bed-hopping of a group of people, whose connection is a cleaning lady named Maria. Nancy is married to Tony, but she fancies a colleague of Tony's. In the meantime, Nancy beds Maria. And Maria is also fancied by a man in a blue kimono, who slips his wife a mickey and tries to get it off with Maria.
Nancy finally plans a night of passion with Tony's colleague, and pays Maria to take the night off. But Maria is attacked by thugs, prompting Tony to come to her rescue, and leads to discovering Nancy's infidelity.