A series of terrifying accidents and brutal murders leave a bloody trail into the subterranean caverns of an Opera house. Below the theatre stalks a man raised by creatures of…

A young opera singer is stalked by a deranged fan bent on killing the people associated with her to claim her for himself.

A group of tenants and visitors are trapped in a 10-story high-rise apartment building infested with demons who proceed to hunt the dwindling humans down.