Carnage Hall 1988
From The Lost Media Wiki
there's a movie from the late 80s that is either lost or just unreleased called carnage hall
It was released in 1988
it has since vanished since it's release in 88
nothing has resurfaced since, not even a single screenshot.
and unlike dead end, a poster of it still exists
and not only that but it was also last seen in a video store in 1993
and the director has a facebook account