Revealing mistake: The eyes of Germaine's corpse shut, then open as Mrs. Wadsworth pulls the body off the bannister.
Revealing mistake: The square base securing the knife in Alba's back is visible.
Continuity mistake: Ann is in the nursery with her husband, several feet from the baby, but a closeup shows her next to the baby, then back with her husband.
Visible crew/equipment: A set light is reflected in the glass of the door as Alba enters the darkened house.
