Check out my review later on today for your chance to win your own copy of the game.
From the campaign:
The night started out as a cooperative mission to save some monkeys from the horrible tests and trials they are put through just so people in the world can smell a little better, but it all takes a turn for the worse when you arrive at the local perfume test facility. While silently navigating through the lab to get back to the cages, someone “accidentally” knocks over a beaker of cologne entitled Compete. Due to a current side effect, everyone on your team is now under the impression that it's a competition and whomever frees the most monkeys wins.