Abi has moved to Bath from London to try and start a new life after the death of her twin sister, Lucy. She has been through a lot and is very fragile and vulnerable, and when she meets artist Beatrice, she is very quickly drawn into her circle of friends, which includes her twin brother Ben. Abi grows close to both Beatrice and Ben, and as these relationships progress, the book becomes ever more claustrophobic and tense.
The story is told mostly from Abi's point of view, but with some chapters from Beatrice's standpoint, and the reader is torn between the two, finding their sympathies pulled in two directions, never knowing quite which account is the correct one. As the tension builds, the story becomes more and more edge of the seat, producing shocks and surprises at every turn.
This is a very well written psychological thriller that holds the reader's attention throughout. A great first novel, and I am very much. looking forward to Claire's next book.