Rehan (Mahaakshay Chakraborty) is sent to a mansion by his father, who is in the real estate business. The mansion's caretaker died two days ago, and the mansion is going to be sold off in ten days. Rehan's father suspects this as the doing of a rival real estate company, so he sends Rehan to investigate. He meets a rag-picker on the way who tells him that only he can do it. (It means that only he can stop the hauntings of the Glen Manor.) Mysterious things happen that night. Rehan sees a girl playing piano who vanishes when the door is opened; a book drops from a bookshelf on its own and Rehan finds a letter inside. The letter, written by Meera (Tia Bajpai), tells her story from 1936 when her parents left for Delhi and left her alone with her nanny Margaret (Achint Kaur), a servant and a driver. In the absence of her parents, her piano teacher Iyar (Arif Zakaria) tries to rape her. However, she saves herself by hitting Iyer with a candle stand on his head, which results in his death. Soon, the police corroborate Meera's story, as they find explicit sketches of her in Iyar's house. However, Iyer returns in the form of an evil spirit, killing both the servants and the nanny by cutting their heads. The spirit rapes Meera repeatedly, which leads her to commit suicide, but even after her death her spirit is tortured and trapped in the mansion by the evil spirit.