Late night, September 1997, a force of the commando marches into a deadly ambush in Lebanon. 11 of them are killed, the body of one remains behind – my brother, Itamar. 25 years after Itamar was killed, his sister, director Aya Elia, goes back to observe the bereavement rituals in Israel. “Knock on the Door” is a film about how we as a society remember, and about how we lose. Through the film we meet the informers: volunteers who go through a professional training process that prepares them to deliver the terrible news to the families of fallen soldiers, the end point of which is a knock on those families’ doors. The process exposed through the film, brings to the surface the director’s own coming of age journey, of a childhood left behind. The two faces of loss, the personal and the public, present an original portrait of bereavement.