Emelie

The Irish actress (...) gives a smartly low-key performance as Emelie, a woman who has a mysterious ulterior motive for tormenting Jacob (...) and his younger siblings Sally and Christopher.

The Once Upon a Time actress’ ability to believably flip-flop between the two [sweet & sinister] gives the movie a lingering unease that only worsens once she reveals her motives.

...a bad-babysitter movie, (...) in which three children of fair to more-than-middling adorableness are threatened and terrorized in increasingly creepy and harrowing ways.