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Doctor Who: The Mind of Evil(1971)

Doctor Who: The Mind of Evil

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.

Aired:
March 6, 1971
Status:
Released
Rating:
7.5/10
(11 votes)
Production:
BBC