A $16.5 million Hot Lotto ticket sold in Des Moines in December 2010 sits unclaimed for nearly a year, and when someone finally tries to cash it through an anonymous trust, investigators start asking who would go to such lengths to hide a winner's identity. The trail leads to Eddie Tipton, the information security director for the Multi-State Lottery Association, the man responsible for programming the very random number generators meant to guarantee the drawings were unrigged. The film follows lottery officials, prosecutors, and reporters as they piece together how Tipton allegedly installed hidden code that let him predict winning numbers on specific days, and how a database of past drawings hinted at the pattern years before anyone acted on it. Courtroom footage and interviews trace the case from a puzzling news story about an unclaimed jackpot into a fraud investigation reaching several other states. It is a story about how much trust a lottery system runs on, and how easily that trust can be exploited by the one person meant to protect it.