- HD 1080
- Runtime: 92m.
- Status: Released
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- Languages: it
- Country: Italy
- Director: Duccio Tessari
- Stars: Senta Berger, Luc Merenda, Umberto Orsini, Anita Strindberg, Bruno Corazzari
- keywords: memory loss, whodunit
- Production_studio: Dania Film
- providers: Amazon Prime Video, Fandor Amazon Channel, Amazon Prime Video with Ads
- The Puzzle is featured in the top rankings of 1974
- #62 in Top Crime Movies of 1974
- #59 in Top Thriller Movies of 1974
- #21 in Top Mystery Movies of 1974
- #41 in Top Horror Movies of 1974
In London, A man who has amnesia attempts to uncover the truth about his identity. A menacing individual accuses him of betrayal, and soon more pieces of his puzzling past begin to fall in place.