ks is a supernatural thriller centering on two characters — Manu Verma, the cop, and Raghavan, the psychotic shadowy killer. Raghavan is caught and, as he is about to be executed by hanging. Raghavan and Manu Verma, the cop who tracks him down, shoot each other simultaneously, the result being that Raghavan's soul is transferred into 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. NB: From Wikipedia, the free encyclopedia

Overview from themoviedb.org