Shizhen (Gao Xiaoying) lives alone in a high-rise luxury apartment. Late one night, dragging her tired body waiting for the train at the subway station, a mysterious woman suddenly pulled her to jump the track together. Coupled with the conflict with her partners at work over how to decorate the window for the upcoming Christmas, she began to be tormented by nightmares every night. What is barely called a happy thing is to meet a disabled girl Rou Yan (Zhang Xizhen) who lives in the opposite apartment while running one morning. Rou Yan said that although her parents were both dead, she asked her good neighbors to take care of her and lived a happy life, and at the end of the conversation, she had a Rubik's cube. Shizhen noticed something strange in the room where Rou Yan lived, and then observed it every night with binoculars, and found that every time she walked to 09:56, the whole apartment would turn off the lights, and the next morning, a body would be dragged out. Shizhen's behavior was discovered by a female high school student (Park Xiashan) and told her mother that her mother called the police, but Shizhen did not take the police warning seriously. Soon, the female high school student took the initiative to apologize to Shizhen, and the two became friends, and she repeatedly played the Rubik's cube so that Shizhen found the secret hidden in it and took a cool breath.
5.8
