Unexpected miscarriage hit John (Peter Sarsgaard) and Kate (Vera Farmiga), who were looking forward to the birth of their baby, hard. Kate was almost mentally collapsed, and their marriage was also in jeopardy. In order to save their marriage on the verge of ruin, the couple went to an orphanage hoping to adopt a child. Here, they met a little girl named Easter (Isabelle Fuhrman), who was a little eccentric. The unique temperament exuded by the little girl attracted John and his wife, and Easter eventually became a member of their family. However, with the arrival of Easter, various bizarre events followed one after another. Kate vaguely felt that there was an unknown side behind this little girl with an angelic face...