"Mandy" has garnered devilish amounts of praise from horror/sci-fi/retro-revenge film fans, and deservedly so. The film delivers big time on the camp-crazy, the weirdo-bizarre, and the trippy-unexplained. Unfortunately, the film is frustratingly slow with heavy exposition, long walks, and dreamy dialogue. When the big payoff finally arrives - and c'mon, a chainsaw fight! - relief is felt, not satisfaction.
Cage plays Red, a lumberjack looking for payback after Linus Roache's New Age cult has his woman, the eponymous Mandy, killed for laughing at his fantasies. Roache's Jerimiah summons forth demonic bikers (as I think demonic bikers were easily summoned in a pre-Reddit 1983, but you know, just go with it) to stop a vengeful Red, who focuses his wrath into forging a Conan-worthy axe, a talent most lumberjack's probably tend to hide from their public. Demons and humans alike fall in spectacularly-dismembered messes. The blood does boil, but it simmers for an eternity.
Cosmatos, to his credit, strives to elevate this VHS-worthy, goofy slasher throwback with art house cinema faire. The mustache-twirling baddie twirls with a cause. Cage, likewise, is able to ham it up enough to bring back those fond memories of "Leaving Las Vegas" and "Raising Arizona". In the end, "Mandy" is more like "Eaten Alive", less like "Stranger Things".