As the convertible moves along and then turns a corner and stops at a traffic light, the camera descends and picks up another cheerful couple, Ramon Miguel "Mike" Vargas (Charlton Heston), a handsome, Mexico City narcotics investigator (of the Pan-American Narcotics Commission) with his voluptuous blonde, honeymooning American bride Susan Vargas (Janet Leigh).In the opening credits sequence, white dots travel across the screen, opening up into a gun barrel sight as the secret agent steps into view." Hunsaker had been trying to reach Murtaugh to "get her out of the stuff she was into.She was making, uh, videotapes.Pornographic videotapes." Since he claimed Murtaugh "owed him" for his past Vietnam War sacrifice, he begged him to find who was responsible: "Just find them and kill them.Without knowing the identity of a disembarking passenger, she spoke a few words with Moose""s well-to-do, nicely-dressed daughter Carol Lawson (Ruth Roman) who was visiting from Chicago.