This suspenseful drama from Mexican director Gilberto Gazcon stars Glenn Ford as Reuben, a doctor who has accepted a job at a construction site south of the border following the death of his wife during childbirth. Devastated by grief, the widower is also drowning his sorrows in booze. Then a man comes stumbling out of the desert, dying from rabies, and Reuben is bitten by the same rabid dog. After delivering a baby for Pancho (David Reynoso), Reuben takes off on a mad dash across the desert to find medical aid before the rabies kills him in 2-3 days. Accompanied by the grateful Pancho and the beautiful prostitute Perla (Stella Stevens), Reuben suddenly finds himself fighting to live as time runs out.