Anna Fox is a child psychologist who, a year ago, experienced a terrible tragedy. Now she has become a hostage in her own home. Anna suffers from agoraphobia and hasn’t been outside for many months, even though her family has left her—though Anna talks to them regularly by phone. She spends her days with a glass of wine, watching old films, chatting on internet forums… and spying on her neighbors.
One day, new tenants appear in the house across the square: a father, a mother, and a teenage son. A prosperous, simply ideal family. But one time, Anna, aiming the camera lens out the window, sees a shocking crime. Or did she imagine it? No one takes her seriously; the police don’t believe her words. Under the weight of the secrets and mysteries that begin to unfold, Anna’s world starts to fall apart… What is the truth and what is fiction? Only she will have to find out.