Heiress Ella of the Vance Group is pregnant. Her husband Finn lures her to Heartbeat Island, a heart-shaped tidal island, with a lie of prenatal relaxation. He abandons her with her adopted sister Lore, planning to drown Ella and her unborn baby to seize the billion-dollar fortune.
Stranded, Ella survives wild beasts and storms, gives birth to her baby girl Anya on the deserted island. Caspian, who once escaped their murder, tracks her down. At Finn and Lore’s wedding, Ella returns with her daughter. All crimes are exposed, and the villains are arrested.
