Alexis is about to turn thirty and has trouble finding a purpose in life. He lives closed in on himself and has a terrible fear of any commitment, be it professional or sentimental. One day, he falls in love with a girl who is very successful socially. As she is a bit of a witch, she decides to use her gifts to put him to work and make him evolve, earn money, marry him and have children. The result is not really satisfactory for either of them. But they manage to solve the problem by exchanging the roles of the man and the woman in the couple.