The window to the past can never be closed. 1963: At the stark and isolated modernist mansion of controversial political philosopher Richard Acklehurst, the glittering annual New Year's Eve party has not gone quite as planned. Considered a genius by some, and something far darker by others, by the end of the evening Acklehurst will be dead in mysterious circumstances, casting a long shadow over the lives of his teenage daughters, Aisling and Stella. 1999: Richard Acklehurst's remains are defiled in the country graveyard where they have lain undisturbed for over thirty years, forcing his daughters to return to their childhood home where they must finally confront the complex and dark dynamic at the heart of their family.