Having narrowly avoided tragedy in their hometown of Lavender Tides, Washington, Shauna and Zach Bannister are finally on a honeymoon cruise through the Hawaiian islands. Lost in the glow of their newfound love, they eagerly anticipate basking in the warmth of the lush tropics. But soon the newlyweds begin receiving mysterious threats. After Zach survives two attempts on his life -- staged as freak accidents -- Shauna ominously receives flowers from a stranger. The lovers become unwitting detectives in an urgent pursuit to discover the identity of their murderous stalker.