Antardhaan.

Anirban is a professor who lives in Delhi with his wife Tanu and daughter Zinia. He is transferred to a lonely town named Kasauli. They enjoy a lot in the new city but their neighbors are mysterious. One day, their daughter Zinia goes missing during an excursion. Anirban and Tanu enquire and come to know that Zinia's friends didn't even accompany her.