Nathan Adams’s review published on Letterboxd:
A nerdy little turd feeds a Satanist hippy cult pies made out of rabid dog meat after they dose his grandpa with LSD, and then they start foaming at the mouth and murdering each other—now that's a log line. Why can't more filmmakers come up with stories that have this kind of mass market appeal?
'I Drink Your Blood' is exactly the kind of gritty, gross 70s sleaze that makes you feel like you need to take a shower after watching it. One part canker sore, one part dirt under a hillbilly's fingernails, one part ragged old porno you find in your weird uncle's basement. Near perfection.