In 1858, an eccentric young governess, Winifred Notty, arrives at the remote gothic manor Ensor House. As Winifred assimilates, staff begin to inexplicably disappear, and the owners wonder if something is amiss about this new governess.
A woman suffering from amnesia pieces together the events that led to her father's suicide, only to be haunted by the ghosts of children that she begins to suspect were murdered by him.