Aayushkalam (1992)

Balakrishnan (Mukesh) who is sick and has a heart disease, gets a heart transplant from a man (Aby Mathew) who died in a recent car accident. The operation is a success but, Balakrishnan starts seeing the ghost of Aby, who lingers around for Balakrishnan to help him find his murderer so that his soul can rest in peace.