Dong-sik and Myeong-ja are found dead near a poultry farm, with twelve stab wounds. The police, assuming that this is a robbery case, start investigation. One day Myeong-ja, comes to work for free at the farm, in order to marry well. Dong-sik, a songwriter, becomes close to Hye-suk who wants to be a singer. However Myeong-ja comes in between them, and gets pregnant with Dong-sik's child. When Dong-sik's wife Jeong-suk finds out about it, she forces her to have an abortion. Myeong-ja, in turn, poisons Dong-sik's son Chang-sun. Jeong-suk tries to kill Myeong-ja with rat poison, but is trapped by Myeong-ja and cornered.