Haeckle's Tale has an impressive pedigree behind it. Clive Barker is one of the horror gods, a twisted mind that has brought us a 1000 dark horrors including Hellraiser and Nightbreed. He also wrote the Books of Blood, check those out for a scary read. However, John McNaughton is responsible for `gems' like Wild Things (yuck!). Unfortunately, it is his influence that is felt more than Barker's.
What you're left with is Haeckle's Tale about a young doctor, overly influenced by Frankenstein, who wants to bring the dead back to life. Frustrated by attempts using science that fail, he instead finds himself trapped in the realm of necromancy. The movie could have been good had it perused this path, but instead it took a left turn at Albuquerque, as Bugs Bunny would say.
From there, it jumps to soft core zombie porn, almost as if this movie was made with the premise of "Let's through together a little quick plot and then have a really hot actress have sex with a zombie or two". The framing sequence makes no sense, especially one at the end.
I love Masters of Horror, but this is one of the most disappointing. Instead of wasting your money on this, get Fair Haired Child instead, which is the best of the series. Buy Haeckle's Tale only if you're completing your set, but don't expect to be scared or overly entertained.
Recommended for completists only.