1976. When her marriage falls apart, Agnes Le Roux moves back to the South of France from Africa to live with her mother, Renee, owner of the Palais de La Mediterranee casino in Nice. There, Agnes falls in love with Maurice Agnelet, a lawyer and Renee’s business advisor, who is ten years her senior. In November 1977, after a failed suicide attempt, Agnes disappears. Her body is never found. Thirty years on, Maurice Agnelet remains the prime suspect in a murder case with no body and no proof of his guilt. Convinced of his involvement, Renee is prepared to fight to the bitter end to see him put behind bars.