Caché

Caché, also known as Hidden, is a 2005 neo-noir psychological thriller film written and directed by Michael Haneke and starring Daniel Auteuil and Juliette Binoche. The plot follows an upper-middle-class French couple, Georges (Auteuil) and Anne (Binoche), who are terrorised by anonymous tapes that appear on their front porch and seem to show the family is under surveillance. Clues in the videos point to Georges' childhood memories, and his resistance to his parents' adopting an Algerian orphan named Majid, who was sent away.

Synopsis from Wikipedia, CC BY-SA 4.0. Everything below written here.

Poster © the film's rights holders.