A network software called "Magic Cube Game" was invaded by a network virus, which lured game players to play games in the "game world" and the real world, and triggered five criminal cases as the main line. With four internally related and independent cases as the introduction, the magic cube game is the clue throughout, and finally the mystery is solved and the criminals are brought to justice. The male protagonist Chen Fei and his colleagues unraveled the crime maze set up by the murderer step by step, restored the truth, and finally brought the real murderer to justice.