Psychologist Joe O'Loughlin's eldest daughter, Charlie, will barely speak to him. And Charlie's rebellious best friend Sienna is getting into more and more trouble, and taking Charlie along for the ride. Sienna has been almost like family to O'Loughlin--a troubled child who for years spent more time in the O'Loghlin residence than her own home. O'Loughlin's worst fears are confirmed when Sienna turns up at his front door, traumatized and covered in blood while her father Ray Hegarty, a celebrated former police officer, is found murdered. When the detective in charge of the case seems all too eager to lay the blame at Sienna's feet rather than malign the honor of a respected former colleague, O'Loughlin begins to make his own inquiries.