Most of the characters on the US side of the border are portrayed with sympathy and depth. The main protagonist’s step-by-step descent into the drug underworld unfolds with such subtlety that each individual decision he makes along the way seems almost reasonable.
边境这一边的角色都被刻画成富有同情心而深邃的人物。主角一步步向地下贩毒网堕落的过程被描写得极为详尽，在此过程中，他所作出的每一个决定几乎都是十分理性的。