Retired policeman Tom (Samuel L. Jackson) opened a company that specializes in cleaning up crime scenes for others. His main job is to help the victims' families deal with the aftermath of a murder. Although this job is dirty and trivial, he has summed up business skills from it. He and his smart and well-behaved daughter depend on each other for life. The death of her mother for some reason made her particularly dependent on her father. Every time he did not return home at night, his daughter would be uneasy. After cleaning up the scene of a murder, he met the victim's wife (Eva Mendes), and suddenly discovered that his former colleague (Ed Harris) had loopholes in handling the case, and he indirectly became an accomplice. At the beginning, Tom left angrily because he could not stand the corruption of the police force. This time, he returned to the center of the case, intending to get closer to the truth, and danger followed...