A quoi tu penses-tu ?

Pierre, a writer with writer's block, leads a double life: a real life with his wife Mireille and a largely imaginary one with Karine, his best friend's wife. When the two couples travel to Miami together, Pierre's dream world and real world get all mixed up making his life hell. However, when they get back to Paris, Pierre discovers that his feelings for Karine are mutual and he can now open up his heart to her.