FAQ

Baron Frankenstein (Peter Cushing) blackmails two young people—Karl (Simon Ward), a doctor who has been stealing drugs from the insane asylum where he works, and Karl's fiancée Anna (Veronica Carlson)—to help him continue his medical experiments in brain transplantation, this time transplanting the brain of his insane associate Dr Brandt (George Pravda) into another body in order to extract a secret that Brandt was going to share with him before he was driven mad.

Frankenstein Must Be Destroyed, like all Frankenstein movies, stems from the 1818 novel Frankenstein; or, The Modern Prometheus, by 19-year old British author Mary Wollstonecraft Godwin Shelley [1797-1851]. It is the fifth film in a series of seven Frankenstein movies produced by UK's Hammer Studios, best known for their revival of the horror genre in the 1960s and 1970s. Preceded by The Curse of Frankenstein (1957) (1957), The Revenge of Frankenstein (1958) (1958), The Evil of Frankenstein (1964) (1964), and Frankenstein Created Woman (1967) (1967), it was followed by The Horror of Frankenstein (1970) (1970) and Frankenstein and the Monster from Hell (1974) (1973). The screenplay for Frankenstein Must Be Destroyed was written by Bert Batt.

When Ella () as her husband, he sets out Brandt's medical notes on his desk and sprinkles the house with kerosene. When Frankenstein sneaks into the house, Brandt/Richter is already waiting. "What you want is on the desk in my study," he tells Frankenstein. "The game is for you to try and get it." As Frankenstein rushes towards the various closed doors, hoping to find the study, Brandt/Richter tosses lit candles at them, igniting the kerosene. "You must choose between the flames and the police, Frankenstein," Brandt/Richter taunts. Frankenstein finally finds the study, grabs the notes, and races out of the house but trips over Karl, who has been shot by Brandt/Richter. In the final scene, Brandt/Richter carries Frankenstein back into the burning house, which becomes a raging inferno.