Io uccido

FBI agent Frank Ottobre is recovering in Monaco from his wife's death by visiting his friend police commissioner Nicolas Hulot when the first deaths occur, of an American race car driver and the celebrated driver's chess champion girlfriend. Ottobre is soon drawn into a baffling case where the killer goads police with untraceable phone calls to Jean-Loup Verdier, the principality's most popular radio host, before each murder.