Detective John Hobbes has captured and imprisoned the crazy serial killer Edgar Reese then Reese was brought to execution by gas chamber. Hobbes thought his nightmare with this killer is finally over. However he soon discovers that there was a murder in a style very similar to Edgar Reese. Then he found out that it was an evil fallen angel named Azazel who can exist by possessing other people`s bodies. As Hobbes tries to find out the mystery of Azazel he also has to find a way to do the impossible stop a fallen angel.