{Zhao Lei} is a special haunted house cleaner who specializes in cleaning up traces and haze at murder scenes. When he received an order to clean up a suburban villa, he did not expect to encounter a bloody scene where a family of three died tragically. The place was judged by the police to be a burglary, but there were strange phenomena hidden there: items automatically returned to their places, blood flowed from the faucets, and children laughed late at night. He unexpectedly discovered that there were "invisible tenants" living in the villa - the ghosts of the deceased's family of three. Through special communication skills, Zhao Lei learned the truth: the host's family was killed by a business partner to seize the family property, and the murderer faked the robbery. With clues about the dead souls, Zhao Lei dealt with the police and the suspects, and finally revealed the truth and brought him to justice. Since then, the cleaner of a haunted house who can redress the grievances of the dead has become the most mysterious "messenger of justice" in the city.
