Haiwan is a musical Indian thriller film that was released in 1977. The film is about a man who is considered to be a serial killer. He is on the prowl, looking for a variety of young women. In the mix, there is also a man who is an ex-army officer who is considered to be unstable. The movie puts an interesting twist on whether the two are the same man. The movie has a great moral to teach. When parents make the decision to neglect their children, the children can ultimately become unstable when they grow up due to the neglect they received as children.