Author Van Der Zee recreates the life story of Fritz Pfeffer, a German-born Jewish dentist who, under the name of "Dussel", prominently appears in the diary of Anne Frank. Anne described this man, who was her roommate in hiding for almost two years, as a narrow minded, irritating and gloomy figure. This material, including Pfeffer's last letter to Kaletta, his lover, came into the hands of the well-known Dutch historian Nanda Van Der Zee. With the help of Pfeffer's son, who gave her a wealth of unpublished photographs, as well as friends and acquaintances of Kaletta and Pfeffer, and the Pfeffer archives of the Anne Frank Foundation, she recreated the story of his life. This book, which was published in the Netherlands in 1990, corrects the image that Anne Frank gave of Pfeffer and in essence rehabilitates him. He emerges as an affectionate man and a caring, warm lover. This new image proves to be a correction to the "Diary" and may alter some of the hagiography surrounding Anne Frank.