A plane takes off from Peru (in a long no-dialogue scene) in a storm with two passengers; it lands in Panama with one. The missing man had valuable oil-location maps; everyone who is after them must deal with Dan Hammer, combination private eye, agent, and con man, who can "fix" anything for a fee. Nightclub singer Maxine is on Dan's side... or is she? The rest is lighthearted, white-suited tropical intrigue.