Needles, milk, mushrooms, elevators, births, bees, and bees in blenders—these are just a fraction of the many phobias attributed to Mr. Adrian Monk, detective and title character of the TV show Monk. But when he and long-time rival Harold Krenshaw find themselves locked in a car trunk, Monk has a breakthrough that allows him to cross at least one fear off the list—claustrophobia.

It’s while Monk and Harold are both panicking that the epiphany comes, abruptly interrupting Monk’s angst. “I think we’ve been looking at this the wrong way,” he tells Harold. “This trunk, these walls . . . they’re not closing…