I loved the music/soundtrack so much. Credits go to Goblin for music. The sets, especially early on, were colorful and angular art. Dario Argento follows it all up with colorful stage lighting.  I enjoyed it so much I adjusted my room lighting to red. 
The plot was a fish out of water meets witches, which’s reminiscent of 60s Hammer horror meets 80s gore. I enjoyed the story but didn’t love it. There was one scene though that I absolutely loved/hated. I wanted to look away, but I just kept watching. So brutal. 
No joke, I’m gonna play Goblin from the soundtrack in my yard for trick r treaters this year. I’m gonna put on some red, green, and blue lights too because of this movie. Hats off to Dario Argento for setting a very spooky stage. 
3.5 stars but I beefed it up to 4 because I plan to rip it off.