January 1939. When Katja Heinz secures a job as a typist at Doctor Viktor's clinic, she doesn't expect to be copying top secret medical records from a notebook. At the end of the first world war, Doctor Viktor treated soldiers for psychological disorders. One of the patients was none other than Adolf Hitler. The notes in his possession declare Hitler unfit for office - a secret that could destroy the Fuhrer's reputation and change the course of the war if exposed. Katja and Doctor Viktor hope to find a publisher brave enough to print the controversial script. But Nazi spies will stop at nothing to destroy the notebook and silence those who know of the secret inside.