

Doctor Who: The Mind of Evil
Directed by Timothy Combe1971 2h 30m[Science Fiction](/on-demand/category/sci-fi), [Drama](/on-demand/category/drama)
80%7.5
Professor Emil Keller has created a machine that can pacify even the most dangerous of criminals. But when the Doctor and Jo arrive at Stangmoor Prison for a demonstration, things start to go horribly wrong - especially when they discover that the Doctor's old enemy the Master is responsible for the machine.





