I saw a movie back a couple of years ago. It was regarding a prisoner who was on corpse duty inside what appeared to be a prison or a gulag. She or he would have to go pick up the corpses after they've been shot. Essentially he/she is in fear for the entire film as he/she does not know when it will be there time to get shot.

I really want to watch this movie again. I think it is WW2 based. European. French, Russian.. I don't remember. Please help.

Cheers