This film is a version of DreamWorks remake of the 2003 horror film "Rose and Rachel" by director Kim Ji - Woon, directed by British brothers Thomas Guard and Charles Guard, with British actress Elizabeth Banks playing the role of the stepmother played by Kim Hyun - Ah in the Korean version.
Anna (Emily Browning) and her sister Alex (Arielle Kebbel) have just gone through what was probably the saddest event in their lives: not long after their mother's death from an illness, their father (David Strathairn) has already brought home a new woman. Neither Anna nor Alex like their new stepmother, Rachel (Elizabeth Banks), since in their hearts, their real mother has already left this world.