Gerard Kremer Jr. and his wife Toon learned from the many conversations with his father and other witnesses that Ans van Dijk, a Jewish woman who was executed after the Second World War for collaborating with the Nazis, was the only suspect in the betrayal of the Frank family. After 75 years, Gerard jr. has now revealed his father's and other witnesses' true story that has led to the unravelling of the betrayal.© 2020 De Lantaarn bv, Ede