While in transit in Montreal, an insomniac tourist meets a married woman, upset by the disappearance of her dog.

Rosalie's door closes roughly. Her boyfriend Jimmy, a street musician, has just decided to break up with her. For an hour and a half, Rosalie will go through all kind of moods and sink into a destructive madness, while recalling the memorable moments of her story. The film is a deconstruction of the romantic comedy genre and its way of portraying love.