Blackmailing a young couple to assist with his horrific experiments the Baron, desperate for vital medical data, abducts a man from an insane asylum. On route the abductee dies and the Baron and his assistant transplant his brain into a corpse. The creature is tormented by a trapped soul in an alien shell and, after a visit to his wife who violently rejects his monstrous form, the creature wreaks his revenge on the perpetrator of his misery: Baron Frankenstein.
Elenco: Peter Cushing , Veronica Carlson , Freddie Jones , Simon Ward , Thorley Walters , Maxine Audley , George Pravda , Geoffrey Bayldon , Colette O'Neil , Frank Middlemass , George Belbin , Norman Shelley , Michael Gover , Peter Copley , Jim Collier , Allan Surtees , Windsor Davies , Harry Fielder , Caron Gardner , Victor Harrington , Harold Goodwin , Timothy Davies , Jack Armstrong , Elizabeth Morgan , Dorothy Smith .