A Riviera bathing resort is deserted in the autumn rain. When the bus arrives, only one person alights, a stranger who forces his way into Mellie's house when she is alone. He ties her up and rapes her. But by nightfall he is dead. Soon after, Mellie meets an enigmatic American, Harry Dobbs, at a wedding. He seems to know the full story of that night, but he still wants to know more. But Mellie's not telling. Hour by hour the relentless man and the desperate young woman circle one another like cat and mouse.
