When his wife is murdered, Dong-ho loses the light in his life, breaks down and falls into depression. But he knows that as long as the killer is still around, he can not get out of his loss. Then, one day, he receives a call and can not believe who he is listening to.

When his wife is murdered, Dong-ho loses the light in his life, breaks down and falls into depression. But he knows that as long as the killer is still around, he can not get out of his loss. Then, one day, he receives a call and can not believe who he is listening to.