Sam works for multi-millionaire land developer Lucien Moray who wants to buy the property for an upscale condominium. The waterfront community is divided on this issue like the Hatfields and McCoys, with environmentalists siding with the aquarium and local business owners lining up behind Moray.
Meanwhile, a body is found in a nearby inlet. Kristy, aided by her veterinarian daughter, investigates and discovers deep secrets among the aquarium staff—secrets that points to one of them as the killer. Soon the aquarium is plagued with accidents, Kristy has a near death encounter with a nine foot bull shark, and a second murder occurs.
But ferreting out the murderer and discovering the story behind Sam’s disappearance aren’t Kristy’s only challenges. When her widowed, septuagenarian mother announces her engagement, Kristy suspects her mom’s soon to be husband is not all he appears to be. As Kristy tries to find the truth before her mother ties the knot, she also races the clock to find the aquarium killer before this killer strikes again.