Life is good for Luis (Alain Chabat). He's happily single, enjoys his job and is loved, cherished and pampered by his mother and five sisters. But, one day, they decide it's time for him to marry.
Luis hurriedly hatches a plan to fend off their unwelcome intrusion into his love life. He will find the perfect woman, who will charm his family, exchange engagement rings... and disappear on the day of the wedding. After that, nobody will dare mention the word marriage to him again. By happy coincidence, Luis meets Emmanuelle (Charlotte Gainsbourg), his best friend`s sister, who's just arrived in Paris and is looking for a job. It seems like a win-win situation for both of them, but the best-laid plans of single men can go horribly wrong!