Doctor Who: The Mind of Evil
3.6
Length150 mins
LanguageEnglish
Release Date1971-03-06
StatusReleased
Science Fiction
Drama
Adventure
Synopsis
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.