A network software called “Cube Game” was invaded by a network virus, tempting game players to play games in the “Game World” and the real world. Five criminal cases were triggered as the main line. Four internally related but independent people were involved.The case serves as the introduction, and the Rubik's Cube game serves as clues throughout. The mystery is finally solved and the criminals are brought to justice.

The male protagonist Chen Fei and his colleagues uncovered the truth step by step in the criminal maze laid out by the murderer, and finally brought the real murderer to justice.