Khoon Ka Karz is an action crime drama. The movie revolves around three men named Karan (Vinod Khanna), Kishan (Rajinikanth) and Arjun (Sanjay Dutt). Kishan and Arjun are orphans, who grew up in the care of a lovely and kind woman named Sarita Devi (Sushma Seth) in her orphanage, while Karan was her former foster child. Despite her efforts of raising the boys with love, and teaching them the lesson of truth and honesty, the three boys took the path of crime. After committing a series of crimes, the three get arrested and imprisoned, and it is then that they recollect their memories of Sarita Devi and her lessons. Will Sarita Devi’s lessons save the boys this time?