"Satan's Blood" has to be one of the most underrated Spanish horror films ever made.It's sleazy and genuinely creepy Satanic horror flick co-produced by Juan Piquer Simon and well-directed by Carlos Puerto.Andy and Thelma,a couple living in Madrid leave their apartment for a pleasant day around the city with their dog Blackie.They cross paths with Bruno and Anne,a strange couple who invite them to their eerie country estate.Unbeknownst to them,Bruno and Anne are devil worshippers...Very atmospheric chiller that offers plenty of sleaze and full-frontal nudity.The scenes with a creepy porcelain child doll scared the hell out of me.The opening scene of nasty rape-murder in a Satanists' coven is wonderful."Satan's Blood" is extremely hard to find,but if you are a fan of sleazy Spanish horror give it a look.10 out of 10.