Genre fiction is harder than people want to give it credit for, partly because 90 percent of it is world-building. Watching In the Amazon Warehouse Parking Lot, my brain kept jumping to Severance, a TV dystopia that’s got its t’s crossed and its i’s painstakingly dotted. (Just look at how much time that show spends explaining why a character can’t sneak a written message out of the office, even if she swallows it.) By contrast, Mantell’s characters are surrounded by unaddressed blips in internal logic — if the show were a Dungeons & Dragons game, the players would be endlessly riding the DM about loose ends and loopholes.