When drama student Alice Bright arrives at the gothic Cadogan House in Knightsbridge, she expects a fresh start in London-and a room rented from fellow student Janice. But Janice is dead, found hanging in the building's lift in what appears to be a bizarre suicide. With nowhere else to go, Alice is offered a place to stay by a nervous neighbour, Kathy, and quickly becomes entangled in a web of paranoia, occult symbols, and sinister secrets. The deeper Alice digs into the building's past, the more she uncovers: a scandal involving sex, drugs and Satanism in the 1960s, a string of unsolved deaths, and the mysterious figure of Victor Prince-once a film director, now a recluse. But it is the enigmatic concierge, Mr. Quigley, who hides the darkest truth of all. As supernatural forces close in and reality begins to fray, Alice must confront the terrifying possibility that something evil has taken root in Cadogan House-and it wants her soul.