 In pursuit of stolen aircraft engines on a Central American island, federal agent Rigby meets chief suspect Hintten and his wife Elizabeth, a sultry cafe singer; and is watched by Bealer, a "pie-shaped man" with sore feet. Rigby knows he s on the right track when Bealer offers him money to leave Carlota. When Rigby and Elizabeth are drawn to each other, the gang realizes there s more than one kind of bribe. Everybody sweats.