When he was in college, the protagonist Zhang Che accidentally learned about a game called "Death Clearance", which was a puzzle game. The strange thing was that the environment in the game was exactly the same as his school. The main task in the game is that the player must answer the questions correctly within the specified time, otherwise the hostage in the game will die. Zhang Che's first mission was not completed, and the girl who was taken as a hostage died. The next day, a student died in the school. The deceased and his death place were exactly the same as those in the game. After many verifications, Zhang Che knew that this was a real death game. When he was in distress, police officer Lu Changyin appeared beside him, gave him a lot of help, and told him a surprising fact - there was a ghost around him. Because of his guilt, Zhang Che tried hard to pass the customs and rescue more hostages, but he repeatedly ran into obstacles. At this moment, another person who knew the "Death Clearance" game, Shen Tu, appeared. He claimed that he was also a game player and threatened to work with Zhang Che to save others. With Shen Tu's help, Zhang Che's customs clearance journey was smooth sailing, and his level in the game was getting higher and higher, but he gradually began to doubt Shen Tu's identity. Later, Shen Tu disappeared mysteriously. In order to find and rescue Shen Tu, Zhang Che tried his best to find and rescue Shen Tu, but was captured by the big boss behind the game and brought into the game world. He began to continue to pass levels in the game world. Also in the game world, Zhang Che successfully found Shen Tu, but finally learned the truth and Lu Changyin's conspiracy.