A relaxing cruise down the Mississippi on the Miss Delta Belle steamboat turns to tragedy when celebrity Delilah Dove falls from the deck and is swallowed by the river faster than you can say "man overboard"! It’s touted as a tragic accident, but guests Miss Nora Marsh and her wily great-aunt Julia know a murder when they see one. Can they get justice for Delilah and crack the case without alerting the murderer to their suspicions?
When mystery novelist Hazel Martin receives a secretive letter from an old friend who suspects her relatives have murderous intentions, she packs her bags and heads to the country. Tampered medications, symptoms of poisoning, and suspicious accidents all add up to attempted murder, and it's up to Hazel and her Siamese cat, Dickens, to sniff out the clues. But with a house full of relatives who all have a motive, will Hazel be able to unmask the culprit before things turn deadly?