Near a poultry farm just outside of Seoul, the bodies of Dong-sik and Myeong-ja are found with twelve stab wounds. The police conclude that the murders were committed during a robbery, and begin their investigation. Myeong-ja (Yoon Yeo-jeong) takes an unpaid position as a housemaid for poultry farmer Jeong-suk (Jeon Kye-hyeon), in exchange for the latter's promise to find her a good husband. While Jeong-suk is visiting her parents, her husband Dong-sik (Nam Koong-won), who is a composer, receives the sexual advances of aspiring singer Hye-ok, who tries to seduce him in order to get a song. At that moment, Myeong-ja, who has been instructed by Jeong-suk to keep an eye on her husband, intervenes and kicks Hye-ok out of the house. But Dong-sik rapes Myeong-ja and she finds herself with child. Dong-sik apprises his wife of the fact, the Jeong-suk forces Myeong-ja to have an abortion. Jeong-suk eventually gives birth to her own child, and neglects Myeong-ja. Angered, she kills Dong-sik and Jeong-suk's son, Chang-sun, in retribution. Jeong-suk retaliates by attempting to kill Myeong-ja with rat poison, but is entrapped by the latter's machinations and placed in a compromising position. When Myeong-ja accidentally commits murder, she makes it look like Dong-sik is the culprit. To protect her family, Jeong-suk gives Dong-sik over to Myeong-ja and takes care of the body. But the police find the body near the river and come after Jeong-suk and company. Dong-sik and Myeong-ja commit suicide, and Jeong-suk stabs their bodies to make it appear as if there was a robbery, in an attempt to protect her family's honor. The true facts of the case come to light, and Jeong-suk collapses, wailing, in the rain-drenched street.
