Thea is tired of having to entertain Drew's children during the summer holidays so she accepts a commission to watch over a house in Barnsley. On her first day there, she rescues a fugitive woman she finds hiding under some bushes. The woman's story is thin and incoherent, but Thea gives her sanctuary for the night only to find her dead the next morning. The police are impossibly busy with a big investigation into the trafficking of rare animals and Thea is effectively on her own, trying to make sense of the murder. As she digs deeper into the woman's background, she discovers a tangled web of lies, secrets and at least three very likely suspects.