It's Christmas 1880 in London's East End and a dying Irish girl leaves her baby in the care of the Sisters of Clemency. The nuns raise little Ettie O'Reilly as their own. But the lives of the nuns and orphans are soon crushed by an unexpected turn of events. Ettie is at her lowest ebb when she is betrayed by the boy who has promised his undying love and loyalty. She is faced with the revelation of a heart-wrenching secret.