Handsome Italian laborer Kieron Moore works as caretaker of the Neopolitan villa inherited by plain-Jane Englishwomen Margaret Johnston and Dulcie Gray. Johnston is swept off her feet by the raffishly charming Moore, and before long they are wed.

Quiet, withdrawn 13-year-old Rynn Jacobs lives peacefully in her home in a New England beach town. Whenever the prying landlady inquires after Rynn's father, she politely claims that he's in the city on business. But when the landlady's creepy and increasingly persistent son, Frank, won't leave Rynn alone, she teams up with kindly neighbor boy Mario to maintain the dark family secret that she's been keeping to herself.