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Dangerous Knowledge - Season 1
- کال: 1976
- هیواد: United Kingdom
- ډول: Mystery
- سټوډیو:
- کلیدي ټکی: thriller
- ډایرکټر: N.J. Crisp
- کاسټ: John Gregson, Prunella Ransome, Patrick Allen, Ruth Trouncer, Ralph Bates