the story tells the story of college students chunyu and others being involved in an unavoidable game called "level 19" aaa。 chunyu, a college student who has had a estrangement from his father since childhood, was involved in an unavoidable game called "level 19". in the game, chunyu meets the smart and calm gao xuan, doudou with powerful force, and the funny yang bawan and others. she and her friends went through the "ghost building" filled with shadow puppets, the deserted village pursued by skin figurines and other levels. the friends failed to pass the level in different game stages, which led to a coma in reality. under the crisis, chunyu decided to find out the reason why they entered the game and the conspiracy behind the game. in the interweaving of the game world and real life, everyone has learned love and respect, and has realized the meaning of life from adversity. everyone has used their own way to reconcile with difficulties, understand their parents, and accept themselves. finally, through the intervention of the public security, these young people uncovered the conspiracy behind the "19th floor" game. chunyu finally reconciled with her father and walked out of the shadow of the past. the drama is adapted from cai jun's novel "the 19th floor of hell".