It's an opportunity she can't refuse. The woman before her tried...

Freya Miller needs a miracle. In the fallout of her husband's betrayal, she's about to lose her family home, and with it the security she craves for her five-year-old daughter, Skye. Adrift and alone, she's on the verge of despair until a chance meeting with the charismatic Dr Marsden changes everything. He's seeking a new tenant for a shockingly affordable flat in a fashionable area of London.

Adder House sounds too good to be true... But Freya really can't afford to be cynical, and Dr Marsden is adamant she and Skye will be a perfect fit with the other residents.

But Adder House has secrets. Even behind a locked front door, Freya feels as if she's being watched: objects moving, unfamiliar smells, the blinking light of a concealed camera... and it's not long before she begins to suspect that her dream home is hiding a nightmarish reality. Was it really chance that led her here--or something unthinkably dark?

As the truth about Adder House starts to unravel, can Freya and Skye get out--or will they be locked in forever?