The Brain, also known as Vengeance and Ein Toter sucht seinen Mörder, is a 1962 UK-West German co-production science fiction thriller film directed by Freddie Francis and starring Anne Heywood and Peter van Eyck. It was written by Robert Banks Stewart and Philip Mackie adapted from the 1942 Curt Siodmak novel Donovan's Brain. In this film, differing from earlier adaptations, the dead man seeks his murderer through hypnotic contact with the doctor keeping his brain alive.