aks (2001)

Aks is a supernatural thriller centering on two characters — Manu Verma, the cop, and Raghavan, the shadowy killer.

Raghavan is caught and, as he is about to be executed by hanging, his spirit goes into Manu Verma's body and starts to manipulate the cop into performing acts that Raghavan wanted to perform. But he couldn't save himself. He goes to another town but is not able to find peace.