Sonia, a fifty year old woman, looks as she is living a love story with a much younger man than her. The story is ending because she intends to go back at home with her husband and two sons.

At the same time … a crime! A trader is killed in his office and his secretary is in an irreversible coma.

Two stories go side by side, apparently without ever meeting: police investigations on the mysterious murder and Sonia who finds she can no longer go back from her family. In addition to the young man, the father and the old professor of philosophy will try to make her understand that at certain times of life we can’t decide to go back.

As soon as the trader’s case is resolved, the two stories join: with a surprise ending.