Betty and Victor are a pair of clever grifters, with years of history together. They specialize in well-planned, middle-range scams, bilking ordinary people of moderate sums of money, with a modus operandi that has kept them comfortable and out of trouble. The much younger Betty reveals that, for the past year, she has secretly been plotting the big sting. She has seduced Maurice a handsome young executive who is planning to rip off an international money launderer and, with Victor's help, Betty is planning a double-cross of her own. Suddenly, Betty and Victor find themselves pitted against big-time criminals with very large guns. As the prospect of millions lures them, first to Switzerland and then to the Caribbean, the stakes get higher and their own relationship becomes more calculated and less clear.