Una Richardson may finally be able to put her dark past behind her. As companion to the elegant Elspeth McKenzie, Una steps into a world of luxury and feels her heart beginning to mend. That is until she meets Elspeth's daughter, Kathryn, who resents Una's place in her mother's home. As Una becomes more entangled in Kathryn's jealousy she uncovers the family's dark secrets... including the mysterious deaths of the two girls who came before her. As the walls start closing in around her, Una can't help fearing how long it'll be before she ends up just like the other girls?