Nathan's skills and intuition make headway into Elisabeth's case, and this curiosity is further aroused by her mysterious first words to him : " You want what they want, don't you ? ... I'll never tell ... any of you. "

Little does Nathan suspect that Elisabeth and her cryptic message are tied to a danger that has closed in on him and his family. Nathan's daughter has been kidnapped by ruthless thieves, and to save her, he somehow must unlock a six-digit number locked away in Elisabeth's troubled mind. There is no discussion, no negotiation. With his daughter's captors watching his every move, Nathan is trapped in a nightmare even be could never have envisioned. And as Nathan is reminded constantly by his tormentors : If he wants to see his daughter alive, he dare not say a single word.