Itoko Doshi (1972)

Itoko Doshi 1972 / いとこ同志 1972 / Cousin Comrade , Comrade Cousin , Three Headed Tower , みつくびとう , 三つ首塔

Miyamoto Otome lost her parents when she was 13 years old, and was taken in by her uncle Seiya Uesugi. Soon, the young girl was handed over nearly 10 billion yen, from her relative Genzo, on the condition that she will marry a stranger named Shunsaku. One month later, the first murder occurs. Soon, everybody discovers, that the killing is related to ‟Three Head Tower‟, that Genzo built to hold a memorial service for the three heads of the two men, he once killed and himself. But somehow Otome is related to all of this?! (Source: Japanese = Wikipedia || Translation = XuongPhim) ~~ Adapted from the novel ‟Mittsu Kubi Tou‟ (三つ首塔) by Seishi Yokomizo (横溝正史).