In this absorbing and unsettling novel, the heroine, Rachel, inherits a house in Bristol, and sets about making a new life for herself there. Her bright demeanour, love of a happy tune, and care of her appearance, make her a woman we can like, despite her obvious eccentricity - she is painfully inept at interpersonal relationships, and quick to take offence. Gradually the story darkens as she slips into further delusions about herself and others, and begins conversing with a former, deceased, resident of the house. Her breakdown is so subtle and gradual that we are as frightened and shocked as she is by the ending.
If a mark of a great novel is to be thought-provoking and memorable then this is definitely one.