A nine-year-old boy has to watch his father being cruelly killed in a concentration camp. He is traumatized for the rest of his life because he can never forget the names of those men who were involved in the murder. The boy comes to the USA, is adopted there and experiences a happy youth. He studies and starts a career with a New York advertising agency after graduation. At that time, horrific murders were happening all over the world. The criminalists are at a loss. Neither the motive, nor the perpetrator or the perpetrators can even be recognized to a degree. From Paraguay via Italy to Egypt, there is feverish investigation. In New York the circle closes at the end.