Beth lives in the tree-shrouded no-man's land by Camden Lock with her partner Sol and their daughter Fern. Life is peaceful, but Beth is troubled by increasing unease. It could be the uncertainty over her mother, who disappeared when Beth was a child. Or it could be her sense that Fern is keeping secrets from her.
So she goes to therapy. Dr Tamara Bywater is there to help her patients. But what if the very person who is meant to be the solution becomes the most dangerous problem of all? And why is what's bad for us so enticing?