US movie, production years 1960s-70s.
A detective interviews a young woman with childhood trauma. It unfolds that the girl witnessed her mother being murdered by poison on board a ship with the intent to steal the loose diamonds that the mother was transporting. The story is set during World War 2. At the beginning of the film there is a scene on a transatlantic liner where two couples are having fun at a dancers and then go to the cabin of one of them, who has a small daughter. Invited to the cabin, the couple kill the couple and at this point the ship is hit by a submarine. An evacuation takes place. The film then moves to the post-war years when the child who survived the ship is now a grown woman. She tries to find her parentsā killers. She seems to lure the killers through television. In the filmās finale, it turns out that her parents were killed for diamonds hidden in a doll she had on the ship. I always thought it starred George Hamilton but there is nothing in his filmography that matches this film for me.