It began with a Freudian script by Poe fan, playwright and cryptographer Leo Marks, who considered his role as a (famous) WWII codebreaker a highly voyeuristic one. It was such a personal project for director Michael Powell that he cast himself and his son as (abusive) father and (disturbed) child. It was famously condemned by critics of the time: Sight & Sound’s Derek Hill likened it to concentration camp atrocities, while, in 1994, Dilys Powell boldly admitted it was a masterpiece, reversing the hatred she expressed decades earlier.