Normally games are source of relief and education for a human in his life but if a human gets obsessive about a game then that obsession will not only destroy his life but also peaceful lives of others in society. In this story a person named X became so obsessive about a particular character(villan)of a game that he not only became delusional but also a killer. He developed a delusion that he is a villain and his delusion transformed him into a monster i.e. an inhumane creature. When series of murders started occurring in city and the police was unable to capture the perpetrator then a Special Investigation Unit(SIT) was established and SIT was ordered to solve the case ASAP. SIT after facing a series of challenges finally caught the killer. But who is behind the mask Killer X? Let's see in the story.