What would you do if your sister is murdered and the killer gets away with it?
Tommy Courten, an IBM sales executive, finds his life upside down when his baby sister is murdered and the prime suspect escapes to South America. The police and the F.B.I. give up on the case but Tommy, who is addicted to the violence he experienced as a marine in Vietnam, is intent on revenge. He embarks on a lone manhunt to bring the psychopathic killer to justice. Tommy tracks the man from a Virginia suburb to a dangerous, remote area of Colombia that is controlled by the drug mafia and indigenous tribal people. When he and the killer finally come face-to-face, Tommy is shocked by what he discovers about his own true nature and the path to personal redemption. The Stamp was inspired by a sensational 2007 murder case.