This uneven comedy of manners concerns a young film projectionist (Jerome Ange) who sets out to find a marriageable woman. He sets his sights on two women he has lived with for nearly ten years (Kristin Scott-Thomas and Sylvie Orcier). For some reason, the projectionist encourages one of the women to hire a private detective (Patrice Kerbrat) to monitor his romantic activities.
Two great friends who practice cycling, Commissioner Servolle and real estate developer Faguet, see their friendship tested by the investigation carried out following the murder of Faguet's wife.