One woman. A million-dollar card game. A city in darkness. Working off the books for FBI Special Agent Alex Monroe, Florida bounty-hunter Lori Anderson and her partner, JT, head to Chicago. Their mission: to entrap the head of the Cabressa crime family. The bait: a priceless chess set that Cabressa is determined to add to his collection. An exclusive high-stakes poker game is arranged in the penthouse suite of one of the city's tallest buildings, with Lori holding the cards in an agreed arrangement to hand over the pieces, one by one. But, as night falls and the game plays out, stakes rise and tempers flare. When a power failure plunges the city into darkness, the building goes into lockdown. But this isn't an ordinary blackout, and the men around the poker table aren't all who they say they are. Hostages are taken, old scores resurface and the players start to die.