Jean Faran runs over a young woman named Micaela with his car. Fortunately, she is fine. After recovering from the accident, she invites him to her house for a drink. In reality, she is tricking him into compensating her for the alleged loss of a valuable jewel. Jean falls into the trap, writes him a check, and leaves. The next day, he realizes that he forgot the watch at the young woman's house and returns to retrieve it. But when he arrives, he sees how they take out Micaela's body, murdered the night before.