The Seventh Secret Room: the Missing Suspect

The famous detective Chen Mo encountered the most difficult case in his career - the seventh secret room murder case. The victim died in a completely closed room, leaving no clues at the scene. As the investigation deepened, Chen Mo discovered that this case was inextricably linked to an unsolved case five years ago, and the villain behind it seemed to have been controlling everything. In the process of cracking the secret room, Chen Mo not only had to face complex puzzles, but also faced the darkness in his own heart.