Pierre (Francois Cruise Fran ç ois Cluzet) and Anne (Lisa Azulos Lisa Azuelos) have been married for many years, raised two children together, and have always been very close to each other. Pierre considered himself a competent husband and the father of a responsible person, and he was very satisfied and lucky to have a life as calm as water. One day, Pierre met a woman named Elsa (Sophie Marceau Sophie Marceau). The unique charm of Elsa gradually attracted Pierre. Pierre felt that something in his heart had revived. However, Pierre did not want to leave his wife, but he could not ignore the throbbing in his heart. To his surprise, Elsa felt the same way about himself, and the two frank adults were getting closer and closer. finally crossed the line of ethics.