Los Angeles shortly after the beginning of the XXI century.
Dave Cooper, an ex-police officer and now anchor on a TV show, has it's own live show with a gun on his hand and a cam on his shoulder. His job is to solve strange crimes and in the haloween night he gets on the shady shadowgate manssion where the police is having a gun fight against a strange force.
Dave is now trapped in the manssion and must shoot his way out of there while busting some demon heads for the audience. He's not alone tho because Deva, his demonic female counterpart, is there to make the job easier.