The Police Commissioner, Advocate Sinha and Police Inspector Vikram Singh arrive on the Central Mental Hospital to speak with an inmate, Arun Saxena. They hope to get Vikram to befriend Arun so that they may resolve the mystery as to why Arun ended up romancing wealthy Sapna, then getting involved with Jyoti, and finally killing her. Arun is arrested, confesses to the the homicide and is sentenced to be hanged. This information unsettles Arun to such an extend that he will become mentally risky and is institutionalized. Vikram hopes to befriend Arun, get him cured and medically discharged, and make certain that he is hanged.