Katie always looked after her beloved younger brother Chris - until she left him alone for one selfish afternoon, and their picture-perfect family fell apart. Although Chris survived the attack, the scars ran deeper than the ones left across his face. Now they're adults, and they haven't spoken in years. Then she gets a call, from Detective Laurence Page. Page is facing an unusually disturbing crime scene. Alan Hobbes, a distinguished and wealthy philosophy professor, has been brutally murdered. Hobbes was living in a sprawling mansion - but one that remains half-ruined by a decades-old fire, wind and rain howling through the gaping, creaking roof. Page only has one suspect: Chris, caught on CCTV at the house.