Tetsuo Tosu is a 47-year-old humble businessman who loves his family. He finds out that Reika, his daughter in college, has been physically abused by her boyfriend, Nobuto Matori, and acts to protect her, which leads to a terrible, irreparable situation.

With Kasen's help, Tetsuo devises a way to dispose of the body. In the meantime, a group of men is looking for Nobuto. Tetsuo and Kasen give them false information to divert their attention.

The group of men, led by Kyoichi, finds out Tetsuo and Kasen's lie and resorts to violence to interrogate them to find out what happened to Nobuto.

Tetsuo and Kyoichi work together to trace Nobuto's footsteps before his disappearance. But in that process, they're given a violent and possibly fatal ultimatum by the organization.

Tetsuo and Matori remain locked in their fight to the death, both driven by their love for their families. Police come to investigate the noise created by the scuffle. The survivors are left to bury the bodies and bear the weight of their sins.