In the sexy, sultry thriller RUNNER RUNNER, Richie (Justin Timberlake), a Princeton college student who pays for school with on-line gambling, bottoms out and travels to Costa Rica to confront the on-line mastermind, Ivan (Ben Affleck), whom he believes has swindled him. Ivan sees a kindred spirit in Richie and brings the younger man into his operation. When the stakes get incredibly high and dangerous, and Richie comes to fully understand the deviousness of his new boss, he tries to turn the tables on him.