Synopsis：He Xuerui and Ling Lan are best friends and classmates. Xue Rui, who should have been living a happy life, is haunted by a bizarre dream of a car accident. During summer break, she takes a job at an old house caring for a brain-damaged girl and her grandmother. Strange noises at midnight disturb Xue Rui's sleep. She accidentally discovers that the cause of the girl's brain damage eerily matches her recurring car accident dream. Frightened, Xue Rui tries to convince herself it's just a coincidence. But as she learns more, her unease grows. One day, the grandmother sees a family photo of Xue Rui and yells that Xue Rui's father is the one who hit and killed her son and daughter-in-law years ago. In the ensuing scuffle, Xue Rui accidentally "kills" the grandmother. She flees, meets Ling Lan, and brings her back to the old house—only to find the grandmother's body missing. Ling Lan insists the grandmother died half a year ago! Terrified, Xue Rui asks Ling to stay with her. But when Xue Rui's boyfriend Bai shows up, she is left alone again. The grandmother is gone, yet the strange noises from her room persist! Behind all this eeriness, what awaits Xue Rui—a supernatural entity or a long-premeditated conspiracy?