It is 1945 and Otto Frank, recently returned from the camps, spends his days on the platform of Amsterdam station, waiting for his two daughters. When he learns that Anne and Margot will never come back, he resolves to open the diary of his younger daughter, Anne, and he discovers to his stupefaction that he never really knew his daughter. Recounted by Anne, the years in hiding that brought nine very different people (three families) into close confinement in the Secret Annex, become funny and poignant, full of moments of panic but also of joy. To her father’s surprise, Anne reveals depth, wit and sexual maturity, and sometimes, too, a rebellious spirit that he had never suspected. The story of the love between a father and daughter goes on.