Stéphane is a young man whose vivid dreams and imagination often interfere with his ability to interact with reality. He is coaxed back to his childhood home after his divorced father passes away and his mother finds him a job. While leaving his apartment to go to work one day, Stéphane injures his hand helping his new neighbor move a piano into her apartment. The new neighbor, Stéphanie, invites Stéphane into her apartment (unaware that he lives next door) where her friend Zoé tends to his wound. Stéphane initially forms an attraction to Zoé, though he suspects it is instead Stéphanie who likes him. Stéphane and Stéphanie meet again in the hallway.