Yes, MST3K fans, you heard rights! It's "Manos: Rock Opera of Fate". One of the worst movies ever made (but greatest MST3K episodes) has been made into a rock opera with 10 alternate endings!
What happens when a B-horror movie collides with a rock opera? Manos: Rock Opera of Fate, that's what. A loving family is lost on vacation. Stranded in the middle of the desert, they take refuge in a small house. Bad idea. They try to escape, but the forces of evil prevent them from leaving. Every performance of Manos has a different ending, so you never know what to expect.
"In questions of power then, let no more be heard of confidence in man, but bind him down from mischief by the chains of the Constitution." - Thomas Jefferson