An real estate agent named Palaash gives a flat in a renovated building to his friends, Aarav and Mihika, a newly married couple. But on the very first night of their stay , the couple discovers a leaking ceiling in the flat. To the horror of the couple, the ceiling is not dripping water, but blood. They raise an alarm and their neighbours come running. There is no dead body anywhere, and the water coming from the taps is clean. CID are summoned and but are equally confused about where is this bloodied water is coming from. The investigation leads CID to an old secret water tank that is harbouring bodies murdered by a serial killer, who is seemingly dangerously close. Will CID be able to stop him and save the day?