A pilot is sent across the galaxy through a new device. His mission is to orbit and reconnoiter a planet before returning home. The planet is known to be populated by intelligent life. Once at his destination the pilot becomes marooned on the alien planet and soon discovers the planets only inhabitants are predatory machines.。Phoebe and fellow American Julian Peters meet in Rome, find a lost dog, and agree to return it to Monte Carlo to split the five thousand dollar reward. Discovering the dog's owner dead, they panic and become fugitives. Other victims of misfortune also become suspects, as the plot twists and luck and judgment desert everyone.。