Repo! The Genetic Opera is a must-see film!
It came to mind while I was reminiscencing about my recent discoveries: The Donkey Show, Evelyn Evelyn, and Sleep No More.

A friend and I watched it a few years ago, and absolutely loved it.

Repo is a rock opera, set in a dystopian future where organ repossessions have been legalized.
It has amazing music and gripping characters.