If you loved Greatful Dead, try Vassalord.
A bridge between a film you've already seen and one most people haven't. Here's what they share, and what the second one does that the first one doesn't.
What they share
Theyboth carry the outsider, unhinged mood tags, and they sit in Comedy / Drama / Horror territory. If that's the register that drew you to Greatful Dead, the second film will land in a comparable space — through a different lens.
outsiderunhinged
What Vassalord. is
London streets, late autumn. A cracked vial. Cyborg vampire Charley obeys Johnny Rayflo, his insouciant master, as they solve crimes for the Vatican. Their blasphemous partnership faces a childlike vampire and a strange church faction. A nasty, compact OVA for fans of occult action.

