Kabir Rishi, a chartered accountant, and his wife Jyoti reside in Dehradun, Uttarakhand with their kids, Janhvi and Dhruv. On a vacation to their farmhouse at a remote hill station, they meet Vanraj Kashyap, an enigmatic man. Vanraj offers a laddu to Janhvi in exchange of her paratha. After eating the laddu, Janhvi obeys his every command like a puppet. Vanraj again offers a packet of biscuit later to Janhvi when she is in the car and ask her to eat it once she reaches the farmhouse.
Kabir and his family starts enjoying in the pool of farmhouse. Jyoti puts her wet phone in the rice box for drying then reaches the terrace. She found Vanraj standing at the farmhouse door. Janhvi lets Vanraj in and he claims that his phone’s battery is dead. The family is unsettled by his presence and Jyoti ask Kabir to send Vanraj out of the house. Vanraj starts talking to Janhvi about her boyfriend and college. Dhruv asks Janhvi to play with him. Vanraj is disturbed with Dhruv and asks Janhvi to threaten Dhruv on the swing. Janhvi swings very high with Dhruv, scaring him as he pleads for help. Jyoti and Kabir reach there and take Dhruv down the swing. Kabir asks Janhvi to forget the incident but Vanraj interferes. Kabir asks him to leave but Vanraj denies. Kabir tries to kick him out but Janhvi, upon Vanraj’s orders, prevents her father from kicking him out. Kabir asks Vanraj what he has done to Jahnvi and Vanraj reveals that he has hypnotised her through black magic; she will obey every command he gives. Vanraj orders Janhvi to continuously stand and sit and she follows. Vanraj orders Janhvi to break all the phones, telephone lines and torments the family by dictating Janhvi to do strange and cruel things. Vanraj orders Janhvi to eat dry tea leaves and she does. Kabir stops Janhvi and she slaps her father on the order of Vanraj.
Vanraj asks Kabir and Jyoti to give Jahnvi to him, as he needs their permission to do so. When they refuse, Vanraj hits Janvhi and Kabir attacks him. Vanraj orders Janhvi to break the head of Dhruv and she does.