Magnum is on the sea-front, watching the approaching storms brought on by the Kona Winds, when he sees a woman either slip or jump into the turbulent waters. After rescuing her, he takes her back to the estate, where she tells him that the previous night, she witnessed her husband - owner of a reel-estate empire - murder his business partner, and now fears that he'll kill her too. As Thomas investigates her husband, he begins to fall in love with the woman, but as he observes, the Kona Winds make people behave in uncharacteristic ways, and the whole situation spells big trouble and danger for him...