Tense psychological thriller from Writer and Director David Farr (The Night Manager). Successful couple Kate (Clémence Poésy) and Justin (Stephen Campbell Moore) are expecting their first baby and live in the top flat of London House. One day, another couple, Jon (David Morrissey) and Teresa (Laura Birn), who are also expecting a baby, move in to the empty flat below. After initially striking up a friendship, everything changes one night at a dinner party, when Kate begins to sense that all is not as it seems with the couple below. Then a tragic accident throws the couples into a nightmare and a reign of psychological terror begins.