S1·E568 Khoon Ka Raaz... Ek Awaaz

A couple returns to their house after attending a late-night party and is shocked to see their house ransacked and drops of blood in there. They encounter a scary-looking aged tramp in their house. Investigation reveals that the tramp suffers from dementia but cops know that the man has witnessed a murder. Just then, news comes that a woman's dead body has been found in a scrapyard outside the city. The dots have to be connected and the killer has to be identified.