How long can one fight? How many times can they die? Will they ever give up?

SYNOPSIS:

Six people are trapped in a giant warehouse, brutally executing each other. After John is killed he wakes up in a lab with no wounds to speak of. After some exploration, he is assasinated, and again wakes up. The same story with Amber, Olav, Himeko, li, and Natalia. At times they fight each other, other times they kill each other, each time not quite remembering the last.

Eventually they realize that this whole thing is an expiriment that went wildly off the rails and there are no longer any observers, and they are running out of resources.