Joe Blocker's apartment is located in the Lawrenceville neighborhood of Pittsburgh, with the recognizable landmark statue of the Doughboy just outside the building.
Filmed in the summer of 1988, but unreleased until going direct-to-video in May of 1991.
On some promotional material, director Dean Tschetter's name is replaced by the familiar DGA pseudonym Alan Smithee to indicate his dissatisfaction with the final film.
Near the end the killer is holding a chainsaw that by the sound of it is running, but it is clear to see that the chains are perfectly still.
The gore had to be toned down to receive an "R" rating from the MPAA.