Jacqueline Ghaye

Lucie (Dame Kristin Scott Thomas) presumes that her husband Paul (Daniel Auteuil) - an older neurosurgeon - has an affair. Indeed, Paul behaves strange lately, but the truth behind it is dark and complicated.

Alice returns to her childhood home after her mother's death, only to find the house is rigged with surveillance tracking her every move, as a sinister presence lurks, driving her towards a terrifying revelation.