Victor, under the alias Mr Fenner, rents a room at a boarding house run by landlady Anna Spengler.

Anna's fiancé Karl Holst is a doctor at the asylum where Victor's former assistant, Dr Frederick Brandt, was committed after going insane.

Karl confides to Anna about killing the guard and begs her to leave, fearing she may go to prison for being an accessory to a murderer, but she refuses.

Wanting revenge on Victor and knowing the Baron will eventually track him there, he allows his wife to go free and pours paraffin around the house.

The scene where Frankenstein rapes Anna was filmed over the objections of both Peter Cushing and Veronica Carlson, and director Terence Fisher, who halted it when he felt enough was enough.

[5] It was not in the original script, but the scene was added at the insistence of Hammer executive James Carreras, who was under pressure to keep the American distributors happy.

[5] The scenes featuring Thorley Walters as Inspector Frisch were also late additions to the original script; they have been described as unnecessary, adding an unwelcome element of comedy into the suspenseful story and also making the film too long.

The crudities still remain, of course, but the talk of transplants and drugs seem to have injected new life into the continuing story of Baron Frankenstein.

Freddie Jones is astonishing as the anguished victim of the transplant, whose wife fails to recognise him and rejects him, prompting a revenge plan.