Liu Zhian buys a smartphone to pick up girls and downloads WeChat, but one night he uses the shake feature and gets a call from a creepy female voice. She tells him a ghost story about a game of telephone and asks him to find the "storyteller." Investigating, Liu Zhian discovers the story is connected to Fang Lan's disappearance from Dorm Room 413. Fang Lan played the game with Mu Ning, Li Xiaoxiao, and Momo Tea before vanishing, and the three have been plagued by strange happenings ever since. In fact, Liu Zhian had already shaken out a "vengeful spirit" on WeChat, which demanded that he trade four people for his own life. So he sets a trap, pretending to help the three women rescue Fang Lan while actually luring them to an unfinished building. In the end, he completes the bargain with the vengeful spirit and escapes.
