Coralina Cataldi-Tassoni

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.

Standard story of the Phantom does have one major variation - The phantom is not a disfigured individual, but rather is an unwashed orphan abandoned in the sewers under the Paris Opera & raised by rats. The Phantom invokes death upon anyone who dares harm his beloved rats. In fact, The Phantom's nemesis is the chief exterminator who develops a rat-catching machine.