Xavier Dolan writes and directs this French-Canadian romantic drama about the effect of a sex change on a long-standing heterosexual relationship. Literature teacher Laurence (Melvil Poupaud) and his partner Fred (Suzanne Clément) have shared a long and stable marriage, but Laurence has been harbouring a secret. One day he announces to Fred that he feels he has been living a lie for years, and that he can no longer go on living as a man when he knows that he is meant to be a woman.
Initially shocked and saddened, Fred eventually pledges to support Laurence throughout his transition and aim for a shared future. However, the pressure on their relationship proves greater than either could have anticipated. Can their partnership survive such a monumental change?