
Overview:
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.Status: | Released (1971-03-06) |
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Productions: | BBC |
Production Countries: | United Kingdom |
Spoken Languages: | English |

Backdrops

Posters
Similars
Recommendations
Casts
- 40960: Jon Pertwee - The Doctor
- 94062: Katy Manning - Jo Grant
- 184904: Nicholas Courtney - Brigadier Lethbridge-Stewart
- 1230438: Richard Franklin - Captain Mike Yates
- 1226602: John Levene - Sergeant Benton
- 21607: Roger Delgado - The Master
- 1228239: Pik-Sen Lim - Captain Chin Lee
Crews
- 95508: Don Houghton - Writer - Writing
- 1404432: Timothy Combe - Director - Directing
- 189306: Barry Letts - Producer - Production
- 159214: Terrance Dicks - Script Editor - Writing
- 2936813: Roger Harvey - Editor - Editing
- 2755886: Max Samett - Camera Operator - Camera
- 1189053: Chick Anthony - Sound - Sound
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Reviews
CinemaSerf
Review text:
Still without his dematerialisation circuit, the trapped "Doctor" (Jon Pertwee) and his assistant "Jo" (Katy Manning) are summoned to a prison for violent felons to investigate a mystery surrounding the rather menacing "Keller" machine. It's a sort of high-tech gadget that substitute ....
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