Right at the start, Bev told us she was celebrating a birthday. The significance of that indefinite article passed us by until she protested in the final minutes, “I never said it were my birthday.” Bev was celebrating on behalf of Ryan, the baby she’d snatched from his pram two decades ago as a disturbed 10-year-old, and killed, concealing his skeleton inside a child’s doll. ‘Hurry Up and Wait’ is an uncomfortable half-hour with a macabre conclusion, as befits the creators and director of Psychoville (which in Dawn French’s Joy, also featured a grown woman with a sinister attachment to a baby doll, that one following the death of her own son – the dead baby being the sine qua non of subversive comedy.) The episode is an emotionally cold grotesquerie driven by social awkwardness, cringe comedy, and light satire on the acting world. Line of Duty actor Adrian Dunbar plays an unflattering version of himself on the set of a (fictional) true crime drama by (non-fictional) screenwriter Jeff Pope. In the vein of Pope’s The Moorside, Little Boy Blue, Appropriate Adult and The Widower (that last one starring Reece Shearsmith), it’s a dramatisation of real events, in which a baby was kidnapped 20 years ago and never found. His unseen co-star is “Sheridan” – likely an Easter Egg nod to the star of The Moorside and Inside No. 9 favourite ‘The 12 Days of Christine’. So begins a detective tale disguised as a satirical portrait of actorly egos. As ever, there’s an insane amount packed in to 30 minutes. The skeleton-doll revelation is more effective as a nasty campfire ghost story shock than a satisfying dramatic solution (there are… practical considerations), but the way all the clues were seeded to make the viewer draw the same conclusion as James, only to wrong-foot us with a completely different ending, was very cleverly done. It was part crime drama, part comedy of manners. Before James put two and two together to make five in the Baby Ryan case, the tension came from his unfailing politeness in the face of extreme rudeness. He was ignored by brusque production assistant Jo (Bhavna Limbachia), gawped at by Bev (Donna Preston), fussed over by Oona, menaced by Stan, and taken advantage of by Dunbar. Trapped by civility and intimidation, the family used James as a wall against which to bounce their insults at each other. Pemberton’s Stan is a particularly unpleasant and nastily recognisable creation. Macho, hostile and aggressive (but sharper than James about the ‘Bobby’ misunderstanding), he enjoyed discomfiting their house guest in a way that recalls his namesake in A Streetcar Named Desire. It took James wrongly thinking he’d figured out the family’s secret – that Bev is actually a grown up Baby Ryan – for the balance of power to shift in James’ direction. Not for long. Puffed up with Poirot cleverness, James presented his theory and it all turned out to be bollocks, or more pertinently, a lack thereof. A rip open of Bev’s dressing gown, a black eye from Stan, and it was all over bar the grisly reveal in the final coda. Dunbar proved himself game in a role that sent up the actor’s ego and riffed on his real back catalogue. Like series four’s awards jury episode ‘And the Winner Is…‘, his scenes were filled with well-observed fun-poking, from the rude PA to his outrage at the idea that he works to type. (I can vouch for how badly the most preening kind of actor takes that suggestion.) Those scenes though, weren’t the episode’s strongest. It was at its uncomfortable best thanks to the weird crackle of energy created by Donna Preston’s unpredictable performance, and the tension created by putting characters with such opposing energies as Stan and James in such close proximity. There seemed to be a deliberate tastelessness to the ending, which was the kind of thing you could imagine children delightedly freaking each other out in the school playground. Maybe it made an oblique serves-you-right point about TV’s ghoulish fascination with missing-children true crime dramas, maybe it was just a gag. Either way, an episode like this one makes you grateful for the anthology structure. Before long, there’ll be another one here to take the nasty taste away.