Arnaud Dubois, the heir to Berthier Bank, looks like he could be called... Mohamed. What's more, isn't he in fact the son of Said, the former tennis coach of Arnaud's mother in Djerba? After an argument with his father, Arnaud decides to leave the cosy family cocoon of Vésinet. He then crosses paths with Mustafa, who introduces him to his sister Sabrina; Arnaud instantly falls in love with her. But he realizes that the only way to seduce her is to lead her to believe that, like her, he's the French-born offspring of North African immigrants and that he's called... Mohamed. He then moves into Sabrina's high-rise housing neighborhood, where he'll do everything he can to fit in.