In the final instalment of Peter Plate's acclaimed Mission Quartet, Doojie, Eichmann and Bobo are squatters and small-time dope dealer living in a two-car garage behind the Del Rosa Laundromat on Mission Street in San Francisco. Their prices are reasonable, the quality of their product questionable. Flaherty is an overweight cowboy cop, who boasts the departmental record for arrests made in the line of duty. When Doojie witnesses Flaherty shooting a man, the sadistic cop becomes so bent on the three friends' destruction that he hardly notices his own.