AllMovie

Maurice Blake (Ronald Colman) and Philip Jardine (Charles Youree) are pearl fishers on a tropical island. The two of them are fighting underwater for a pearl, when Jardine is killed by a shark. His mistress, Carmina (Aileen Pringle), has a letter from Jardine's wealthy father (Claude Gillingwater), urging him to return to San Francisco. Since the elder Jardine has never seen his grown son, Carmina convinces Blake to go in his place. Blake is welcomed into the Jardine household and he falls in love with Helen (Doris Kenyon), the daughter of Bishop Saville (Alec Francis). The couple marries, but on their wedding night, the jealous Carmina tells Helen that she is Blake's mistress. Helen runs off, and Blake goes after her. He confesses that he is an impostor and tries to kill himself. Helen nurses him back to health and Jardine, who has come to love Blake like his own son, adopts him. Carmina leaves San Francisco and returns to the tropics.