Roy Tucker, a Vietnam war veteran with excellent shooting skills, is serving a long prison sentence when a mysterious visitor promises him that he will be released if he agrees to carry out a dangerous assignment.
The Domino Principle is a 1977 neo-noir thriller film starring Gene Hackman, Candice Bergen, Mickey Rooney and Richard Widmark. The film is based on the novel of the same name and was adapted for the screen by its author Adam Kennedy. It was directed and produced by Stanley Kramer.