Love in the Time of Fentanyl begins with an overdose. A man collapses in the street, lying unconscious. Two harm reduction workers named Ronnie and Dana administer naloxone and oxygen; they arrive on the scene long before paramedics. “Talk to us, come on bud,” Ronnie says. Dana counts out the man’s pulse. Soon, he rouses, and they help him sit up as an ambulance approaches.