Emily made a mistake, a mistake midwifes can't afford to make. Escaping to her dad's home in Devon to regroup and check in on him – his dementia has been worsening, and her guilt along with it – she is surprised when a beautiful stranger answers the door. Francoise is her dad's new carer, but Emily's father seems to have deteriorated under her care. Emily doesn't trust Francoise – but she doesn't trust herself either. Each has a secret. And one of them will kill to keep it . . .