A cab driver nearly hits a man with amnesia, then helps him unravel his past, only to discover he's a murder suspect as she falls for him.
Insurance detective Steve Hastings is sent by his company to investigate the disappearance of a fellow agent. His first lead is the agent's fetching sister, Victoria, whom he trails to Mexico City. After charming his way into her confidence, Steve helps Vicki unravel the mystery.
New York schoolmarm Hildegarde Withers assists a detective when a body of unscrupulous stockbroker Gerald Parker suddenly appears in the penguin tank at the aquarium.
