Thomas offered Ally, for her birthday, a day in a beauty salon. And of course, by transforming into Emmanuelle (his female double), he will accompany Ally. The dream! However, a major problem arises: Thomas can no longer transform into Emmanuelle!!! A genetic “bug” assures Justin, his little brother who has decided to help him. Over the course of attempts to stabilize his crazy metabolism, Thomas undergoes increasingly bizarre transformations, until he transforms into his own mother!!! Fortunately, this last transformation allows him to discover his mother's plan, to send him to boarding school.