On a cloudy London day, an American babysitter takes care of two young British sisters and starts to realise something is amiss.

Brilliant young actress Charlie strikes up an acquaintance with an intriguing stranger while on holiday in Greece, but it rapidly becomes apparent that his intentions are far from romantic.

Two children discover a hole that they can throw their mistakes into, making them disappear forever. They live without consequence. Until one day, the hole disappears, right when they need it most.