Against the backdrop of a cold Minnesota winter, lottery players hold their collective breath at the thought of winning big on Christmas Day. The jackpot has run up to a red-hot $750 million, the world's richest prize. A bungled convenience store heist triggers a happenstance theft of winning lottery tickets and trips up an insider's scheme to rig the results.

Agent Kirchner, an old-school cop reluctantly teams up with a young tech-savvy analyst on an investigation that propels them into the world of numerical probability, conspiratorial politics, international ticket scalpers, counterfeiters, disgruntled players, and illegal immigrants looking to grab the brass ring. Caught in the crosscurrents of those in deadly pursuit of the winning ticket, the investigators are buffeted by unsolved murders, a bomb blast-and the curious giveaway of winning lottery tickets: acts of charity or criminal subterfuge?

The whereabouts and redemption of the $750 million jackpot lottery ticket remains a mystery throughout, stirring anger and resentment among the lottery-playing public. The winning ticket, finally, surfaces but before the prize can be claimed a Faustian bargain puts Kirchner's job on the line.