Graduate student Leo arrives at Merfolk Island and mistakes the powerful siren Opal for a merman. Teaching him courtship songs, Leo unknowingly makes Opal believe he loves him. Opal has waited over a decade for Leo, who once rescued him but lost his memory. When Leo learns the truth, he flees, only to be imprisoned by a heartbroken Opal. Amid misunderstandings and passion, they reconcile. Leo proposes with their unborn child, and Opal gains legal status. They marry and welcome their baby siren.
Graduate student Leo arrives at Merfolk Island and mistakes the powerful siren Opal for a merman. Teaching him courtship songs, Leo unknowingly makes Opal believe he loves him. Opal has waited over a decade for Leo, who once rescued him but lost his memory. When Leo learns the truth, he flees, only to be imprisoned by a heartbroken Opal. Amid misunderstandings and passion, they reconcile. Leo proposes with their unborn child, and Opal gains legal status. They marry and welcome their baby siren.
