Dr. Robbins determines that a number of unsolved deaths are actually from rabies, and that they are connected to a tattoo parlor and a former medical examiner from Reno who runs it.
Before Ray picks up the insulin bottle, the doctor's name is listed as Dr. Lindsay. After Ray picks up the bottle and the camera zooms in on the label, the label shows Dr. Shaw instead.
Trivia
"The Dead Gone Train" is the title of a blues song recorded by King Solomon Hill in or around 1932.
