Knock on the Ground Door

The case is like hell. You have to find the door and window first and knock on the door before you can find out the truth step by step. After each case occurs, through on-site investigation, clues and evidence left at the scene can be found, and peripheral investigations are also conducted through aspects such as love, hatred, and finance. The case is complex and the plot is confusing. In the investigation process of each case, seemingly unreasonable things are slowly confirmed by evidence bit by bit. The murderer fell into hell, and the solver knocked on the door of the underworld, releasing ghosts and alarming gods.