Patrick Morel, leaves a costume party wearing a woman’s dress. He goes to the bathroom of a café to make a phone call. Zoubida, a transvestite, grabs the chance to swap purses and disappears. Despite all his protests, Patrick is hauled off by the police and is now recognised by all as Ali Berrada, an Algerian transvestite and illegal immigrant. He shares a cell with Sonia, a beautiful Algerian, and Youssef, a nasty little show-off. All three are given expulsion orders. But as they are being transferred to the airport, they manage to escape...