The Night Shift was associated with murders. The hustlers who had killed the "Junk Food Professor" had been regulars. A police sketch of a Hispanic man was posted to the cashboxes; he had stabbed another patron to death. The populace of this "theater" was perpetually stoned on anything and everything - alcohol, grass, angel dust, MDA, acid, mescaline, Christmas Tree speed pills, and heroin-cocaine speedballs. Before it was padlocked by the Board of Health, the Night Shift was a cesspool of psychosis.
Bill Landis, Anger: The Unauthorized Biography of Kenneth Anger (245-46)