The film mainly tells the story of a young girl Jiang Han (played by Chen Duling), who accidentally falls into a holographic game called "Ten Thousand Dreams and Thousand Souls" where many young players gather, and is surprised to find that her father (played by Tong Dawei) is the designer of the game. But things are far more complicated than that. There are shocking secrets hidden in the mysterious game world, which seems to be related to a group disappearance case 15 years ago. In order to find the answer, she, the cold and handsome Nanji (played by Song Weilong) and the warm and warm programmer Sushi (played by Zhang Youhao) form an adventure team, and a group of young people embark on a surreal adventure.