A strange encounter. Neve comes across a troubled woman called Isabelle on Waterloo Bridge late one night. Isabelle forces a parcel into Neve's hands and jumps to her death in the icy Thames below. An unexpected gift. Two weeks later, as Neve's wreck of a life in London collapses, an unexpected lifeline falls into her lap - a charming cottage in Cornwall left to her by Isabelle, the woman on the bridge. The solution to all her problems. A twisted secret. When Neve arrives, alone in the dark woods late one night, she finds a sinister-looking bungalow with bars across its windows. Her dream home quickly becomes her worst nightmare - a house hiding a twisted secret that will change her life forever...