Leading man Mark Strong plays John Washington, a detective with the unique ability to enter people's minds and memories (presumably to help people recall event details pertinent to solving cases). Washington takes on the case of a troubled teenage girl named Anna, played by up-and-coming young actress Taissa Farmiga, who is accused of an attempted triple homicide. To uncover the mystery surrounding Anna and her story, Washington will enter her mind and try to find out the truth: is Anna capable of killing, or is there something hidden in her memories that shows otherwise?