Angel Cop OVA Episode 2: The Disfigured City (1989)

In a nightmare future, violence becomes the only law. In the late twentieth century, the Secret Security Force was formed to stop the actions of the communist terrorist group known as the Red May. This elite anti-terrorist agent battles terrorists threatening Japan, but a mysterious third player is involved in their own way. Angel, a beautiful, yet cold woman, has recently joined the small anti-terrorist group. But her first mission will be a true test of skill, for members of the Red May are being found dead, murdered by gruesome methods. Who is causing these murders? And why?