R | | Horror
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.
The little boy demon was played by an adult dwarf.
Do you see anything?
Bob: Nothing! Nothing in particular!
When George stabs demonic Sally with a stand pole after she has chased him and Hanna down the rope onto the lower rooftop, Ulla's demonic corpse is nowhere to be seen on the lower rooftop where she was thrown by George one scene earlier.
The Anchor Bay/Roan Group 'Dario Argento Collection' videocassette/DVD released in the U.S. features the unedited (unrated) version, 3 minutes longer than the edited R-rated version.