The mad Baron is at it yet again, this time in an asylum where he is helped by a young protege and beautiful mute assistant. The always brilliant Cushing makes the film watchable but the less said about the monster's costume/make-up the better.

Whilst not up there with previous (particularly the first two) installments, it isn't without merit and Hammer's Frankenstein series goes out on a slightly better note than that of their Dracula films...