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Key Witness
- წელი: 1947
- ದೇಶ: United States of America
- ಪ್ರಕಾರ: კრიმინალური, დრამა, ტრილერი
- ಸ್ಟುಡಿಯೋ: Columbia Pictures
- ಕೀವರ್ಡ್: inventor, film noir, murder, corpse
- ನಿರ್ದೇಶಕ: D. Ross Lederman
- ಪಾತ್ರವರ್ಗ: John Beal, Trudy Marshall, Jimmy Lloyd, Helen Mowery, Wilton Graff, Barbara Read