Because he only thinks about Karine, the wife of his best friend André, Pierre, a writer, can no longer write. The situation is all the more complex as Pierre lives with André's first wife, Mireille, whom he took from her five years ago. He confuses his computer and Karine, and talks to her. Karine's spirit is with him. André and Mireille go to a congress of surgeons in Florida, Pierre and Karine, alone, spend delicious moments together.
