Robert Lovell falls in love with his father’s secretary Dorothy Arden and marries her in secret despite his father and his business partner Daniel Casselis’s attempts to arrange a match for him with Daniel’s daughter, also named Dorothy. When circumstances lead to the three young people ending up stranded on a lonely island in the Pacific, complications ensue, especially when Bob suffers a blow which temporarily wipes out his memory and he cannot remember which Dorothy is his wife! All ends happily, however.