Upon learning that her daughter died in an automobile accident, a famous opera singer recently released from a mental institution, flies to Hawaii. She plans to kill her son-in-law whom she holds responsible for her daughter's death. Paul Templin intercedes before the crime can be carried out and agrees to investigate the circumstances behind the young woman's death.
After sending Ben Gregory to investigate on a non-existent shipwreck, an lookalike impostor breaks into his apartment and, posing as the writer, agrees to help a wealthy oilman buy a valuable oriental scroll. When the scroll turns out to be phony, Ben is accused of complicity in the crime and when the oilman is found dead is accused of Ben is arrested for murder.
Eric Jason discovers Pinky Hamilton, a famous jazz pianist, is living in Hawaii under an assumed name and plans to write a story about his career. Pinky isn't happy about being discovered since the gangster who tried to kill him 30 years earlier still wants to settle accounts.
Ben Gregory discovers his tape recorder running in his penthouse. When he replays the tape, he hears the voice of a man thought dead for many years and who is willing to tell his story, but only for a hefty fee.
Ben Gregory is working on a story of a oil tycoon who is trying to cook up a big deal with a crooked financier. The story and the deal may fall apart because of the ditsy mistress' innocent interference.
Eighteen-year-old Penny Baxter is excited about visiting Hawaii until she discovers her maiden aunt will travel with her as a chaperone. It's the older woman, however, who finds romance in the islands when she meets a handsome beachcomber.