Watch Io lo so chi siete for Free: How to Stream the Movie Online at 123Movies. . On August 5, 1989, the policeman Nino Agostino was brutally killed together with his wife Ida Castelluccio, who was two months pregnant. The documentary tells about Vincenzo Agostino, the man who, despite 31 years have passed since his son's death at the hands of the mafia, seeks justice and fights with great determination to discover the truth behind the murder.