One of the most grimly intense entries of the series. Buzz and Tod help heroin addict Arnie (Duvall) kick the habit. These scenes are especially graphic and compelling. In fact, both Maharis and Duvall get extended histrionic scenes where they show their abundant acting chops. And catch Duvall's many addiction tics that really distinguish the entry from its more conventional contemporaries. I may be wrong, but I wouldn't be surprised this was the first TV show to deal explicitly with hard drug addiction and withdrawal. All in all, the 60-minutes are really a Duvall showcase, foreshadowing his exemplary movie career. Too bad, however, we don't see more of Mike Kellin as the cop. He's so compelling in a tailor-made role. And shouldn't forget Monroe-like Diana Millay as Charlotte who mostly gets to decorate the scenes with two of the tightest outfits to get past TV censors. Anyhow, it's a harrowing hour of unusual TV, best viewed when feeling especially secure.