A student of Classical Literature at the Sorbonne, Séverine is neither beautiful, ugly, brilliant, nor mediocre. The young woman lives a banal existence, without brilliance but without drama, alongside a companion who pays her less attention than a television series or video game. After babysitting, she is given a silk blouse that will mysteriously change her life. From that day forward, men give her a different look, loaded with desire. Does the garment have a magic power? Séverine doesn't know, but she finds that it gives her confidence. And it allows her to take destiny into her own hands...