Takashi marries Ryoko, whom he met at a mixer, and moves in with her family. He begins a new life with his father-in-law Junzo, the president of an import company, his beautiful mother-in-law Masumi, and his reclusive sister-in-law Mina. However, the newlyweds' happiness is short-lived as strange events begin to occur around them. Soon, Takashi learns the family's forbidden secret... Two women appear before a man who has a strong desire to get married. What fate awaits the man if he marries both of them?