![](https://image.tmdb.org/t/p/w342/ngQlrgkqQe67nL6GvvsjY0kdG4O.jpg)
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An American tourist, a youth gang leader, and his troubled sister find themselves trapped in a top secret government facility experimenting on children.
Release: Nov 16, 1962
Runtime: 87 minutes
Language: English
Studio: Hammer Film Productions
Country: United Kingdom