Okomizo Village is a hot spring town in the mountains. The Mizukamis are an old family that runs a business in this area. On the day that the will of the head of the family, Kinmochi, who passed away recently is to be opened, Ueda Jiro (Abe Hiroshi) arrives at the invitation of the Mizukamis. Yamada Naoko (Nakama Yukie) is also here as his “assistant”. The whole family assemble in a large room and wait impatiently. Kinmochi’s three lovely daughters Yukiyo (Kokusho Sayuri), Tsukiko (Fujita Tomoko) and Hanae (Iijima Naoko) all have something to hide and are desperately in need of their inheritance. Eldest daughter Yukiyo is married to Tatsuro (Fuke Norimasa), the president of a large manufacturer. Her daughter Fuyuko appears to have been cheated by a bad man recently and covered with money from the company. So she intends to get all of the inheritance to herself. Second daughter Tsukiko succeeded her late husband as the director of a general hospital but seems to need money immediately because they are being sued for medical malpractice. Third daughter Hanae’s husband Shusuke (Morioka Yutaka) is a prefectural assembly member, but he is in danger of not winning in the next election and urgently requires money. However, the will that the family lawyer Saeki Kozo (Kamijo Tsunehiko) announces comes as a surprise to them. Kinmochi had hardly any assets. The only thing he had is the treasure that the heads of the family handed down from generation to generation. Its appraised value is a multi-billion yen at current value. Amidst the excitement of all present, even Naoko leans in despite herself. But the box which holds the clue to the treasure’s hiding place is under a curse. According to Saeki, successive generations of family heads have gone missing in their attempt to find the treasure. However, the three sisters do not believe this old superstition and curse, and although suspicion and hatred bounce off each other, they seek to open the box. The servant Fujisa