Kate (Clémence Poésy) and Justin (Stephen Campbell Moore) are an affluent couple in a tony London suburb awaiting not just the arrival of their first-born, but also the new tenants who will rent the apartment downstairs following the death of its previous inhabitant. When Jon (David Morrissey) and Teresa (Laura Birn) move in — he a self-assured businessman, she a self-possessed professional — Kate and Justin set out to befriend their neighbours.
Things get off to a good start: the overgrown back garden is restored to its immaculate former glory, and, lo and behold, the new couple is also expecting a child. They seem to have lots in common, but things take a strange turn at their first dinner party, and yet another with the birth of Kate and Justin’s baby boy. [Synopsis courtesy of Toronto International Film Festival]