Evil Dead (1981) was a no-budget horror movie that heralded the arrivals of big-jawed actor Bruce Campbell (pictured) and writer/director Sam Raimi.
Anyway, some kooks adapted the film into an on-stage production in Toronto, where it ran for 400-ish performances as Evil Dead: The Musical.
They also worked up some nice posters for it riffing on Hairspray and Les Mis. Gotta love that slogan: "It’s like the musicals you love, only evil." cheerfully gory video (PG-ish?) for the play.