A successful Wall Street trader returns to England with her new husband and five-year-old son, but their new start together turns into a nightmare when they move into a country house which contains a terrible secret.

Natalie Press
as Emma

Hugh Bonneville
as Charles Pollock

Tamsin Egerton
as Flora

Svetlana Metkina
as Lucy

Joan Plowright
as Marjorie Blake

Nina Muschallik
as Pauline

Karen Ferrari
as Jocelyn Partington

Jamie Harris
as Derek Partington

Matthieu Boujenah
as Henri Connaught

Miles Ronayne
as Thomas Connaught