Don't Dress for Dinner by Marc Camoletti
Bernard is married to Jaquelin but having an affair with Suzanne, a model. Jaquelin is having an affair with Robert, who is Bernard's best friend. Jaqui is supposed to go to her mother's while Bernard has Suzanne over along with Robert for an alibi. When Jaqui finds out Robert is coming for the weekend, she cancels. Bernard talks Robert into pretending Suzanne is his girlfriend but Bernard has ordered a cordon-bleu cook named Suzette, who Robert mistakes for the model Suzanne. Now with Robert, Bernard, both Suzies and Jaquelin totally confused, the lies just get bigger and bigger with no end in sight…. Hilarious fun.