This film opens up with a mother discovering her young son with a jigsaw puzzle of a naked woman. He responds to her rage by graphically axing her to death. This pretty much sets the tone for what is to come.
Graphic gore, gratuitous nudity, red herrings, horrendously bad dialogue and gaffs galore this is a bad movie. But it's also an immensely enjoyable one. I like it so much that I own it on pre cert VHS, have 3 copies on DVD and will probably also purchase on BR. I just don't tire of watching it.
And it's not all bad. The gore is decent. The girls are attractive. It's also part Italian and there are effective giallo elements here. Essential viewing to slasher fans.