Masuda hoped to become a journalist, but he did not achieve his dream. Instead, he begins to work at a small factory. There, Masuda meets co-worker Suzuki. Suzuki doesn't like to talk with anyone around him and he doesn't talk about his past with anyone. Masuda and Suzuki, being roughly the same age, develop a friendship. Due to an incident, Masuda suspects Suzuki is the serial killer responsible for killing children 17years ago. ~~ Based on the novel "Yuuzai" by Gaku Yakumaru.