An Ex-Con on the straight and narrow is pulled into a twisted game of Russian Roulette in Las Vegas to save his wife.  666.  Six Contestants, six chambers in a revolver and six sides of a die.
Riley Toback is at a crossroads.  After serving a prison sentence for Armed Robbery, he's determined to make a fresh start in Atlantic City.  Until his brother-in-law, drowning in gambling debt convinces him to pull a heist at a Jersey Shore nightclub.
In the aftermath of the botched robbery, Karim Rashid, a vicious Indian gangster, tracks them down.  And makes Riley an offer.
Triple Six.  One round is loaded into a revolver and the chamber is spun.  The Contestant rolls a die, with the face value dictating how many times the weapon is fired. 
If you can survive three rounds, you win.  With his wife and life on the line, Riley takes the deal.