Delirium (1987)

IMDb has this down as a "spaghetti horror", which is pretty funny. Where does a giallo end and spaghetti horror begin, definition wise? I guess, if anything, Delirium is a late offering to the giallo cause, coming out in 1987. Either way, I thoroughly enjoyed this movie, despite how bad it looks.

The sound effects are so fucking cheap, and couple that with an unbelievable bad overdub, the even more unbelievably bad acting, we have a recipe for success here. The plot revolves loosely around a porno mag's editor being sent pictures of the mutilated corpses of her models, who are draped in front of a massive picture of herself, so as you can imagine there is plenty of cheesy violence, and even more plentiful nudity. Trippy FX are reserved for the brief moments that we see through the eyes of the killer, but are effective. 

Throw in a crappy twist and hey, you've got yourself a thriller (apparently).