- HD 1080
- Runtime: 106m.
- Status: Released
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- Languages: ja
- Country: Japan
- Director: Yoichi Takabayashi
- Stars: Akira Nakao, Takahiro Tamura, Akira Nitta, Junko Takazawa, Ryūko Azuma
- Production_studio: Takabayashi Yoichi Production, Eizo Kyoto Film Co., Art Theatre Guild
- The Death at an Old Mansion is featured in the top rankings of 1975
- #89 in Top Drama Movies of 1975
- #17 in Top Mystery Movies of 1975
- #17 in Top Horror Movies of 1975
A woman and her bridegroom are found murdered in their bed the day after their wedding. It had snowed overnight and the killer left no tracks. It is up to an amateur detective to figure out what happened. Carefully and systematically, he pieces together the clues in this locked room mystery.