Three years ago, Nikki and Ethan Rhodes suffered a devastating loss when their four-year-old daughter Grace was tragically killed in a road accident. Ethan, a radio personality, escapes into work, leaving Nikki to care for their remaining child, Bella, who hasn't spoken since that day. Seeking a fresh start, the family moves into a revolutionary new house designed by renowned architect, Catriona Fisher. The house features a state-of-the-art security system, along with every amenity you could dream of. For the Rhodes' this is a chance to finally pick up the pieces and get on with their lives in a place where they feel totally safe. But what if 17 Church Row isn't the safe haven that they think it is?