The Item
Four felons are contacted by an anonymous client via the Internet.  Their instructions - go to a remote location, pick up a sealed box and keep it safe for 24 hours.  The reward - over a million dollars.  Seems simple enough.  However, upon getting it back to their apartment, their curiosity gets the better of them and they decide to investigate their package.  What they discover is that they have unleashed a deadly creature - and none of them are getting out alive.