The Sinner

Within the walls of a cloistered convent, a scene of unspeakable carnage is discovered. On the snow lie two nuns, one dead, one critically injured - victims of a seemingly motiveless, brutally savage attack. Medical examiner Maura Isles' autopsy of the murder victim yields a shocking surprise, but the case takes a disturbing twist.

Within the walls of a cloistered convent, a scene of unspeakable carnage is discovered. On the snow lie two nuns, one dead, one critically injured - victims of a seemingly motiveless, brutally savage attack. Medical examiner Maura Isles' autopsy of the murder victim yields a shocking surprise, but the case takes a disturbing twist.