The Corrupt, patient zero of a demonic virus

The Corruption Virus was born from the rage of an assault victim who was possessed by an unearthed demonic pathogen that destroyed previous civilizations. The infected, aka The Corrupt, maintains their intelligence, memories and overall personality but inhibitions go out the window. They exhibit psychotic, homocidal and sadomasochistic tendencies. They are driven by rage and pleasure all rolled into one. As they increase their kill count and acts of morbid and macabre violence, the virus starts to spread across the body faster. It slowly morphs the infected into demons who lose their humanity.