Raymonde Chandebise suspects her husband is being unfaithful. She sets a trap for him by inviting him anonymously to a rendezvous at the Minet-Galant hotel. Mr. Chandebise responds to the invitation by sending his faithful friend Tournel, unaware that the hotel porter, Poche, is his look-alike. The hotel subsequently becomes the scene of a gigantic farce where mistaken identities, lies and deception run out of control without anyone able to make it all stop...