The blood in the room, the closed curtains, the bloody knives, the corpses lying on the ground... Who is the victim? Why was that person killed? Is the murderer his wife, the mysterious lover, or someone else? A free detective reasoning game newly launched in 2021! Are you ready to look for hidden clues behind a large number of useless clues? Solve a series of murder cases in this fascinating detective riddle game? Investigate the crime scene to find clues, analyze the relationship between the existing evidence and the suspect, and catch the real murderer in one fell swoop. feature ●Find more clues in the crime scene! ●Not only to find the murderer's method of killing, but also to pay attention to the motive of the murder! ●Fantastic stories, full-color illustrations and interesting music! ●More than 100 free levels and puzzles! ●The mystery story needs to be solved, are you ready to join us? Welcome to the world of the mystery case book. A series of murder cases are waiting for you to solve. Are you really smart enough to deal with all the problems?