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In which Ben discovers the advantages of owning a gazebo

THE ONE WHERE Ben fears he’s killed a client. He hasn’t, but the burn-faced Larry Harvey does murder his mistress, forcing Ben to bury her in the back garden.

VERDICT What’s surprising about this episode is how many answers it suddenly delivers. We discover why Moira looks different to men and women, why Constance despises her, and why she has that freaky white eye. We learn a great deal about the original owners of the house too. It’s also abundantly clear now that anyone who dies in the house remains connected to it in some way, unable to “pass on”.

Indeed, this is a very funny episode, which feels like a strange thing to say, given quite how disturbing much of it is - the episode revolves around two violent murders, a suicide and a suspected miscarriage, for heaven’s sake. That’s a difficult trick to pull off, but writer Jennifer Salt (a 67-year-old former actor whose credits include a role in Midnight Cowboy ) manages it effortlessly. Hayden’s brutal, out-of-the-blue death is shocking, but there’s an air of absurdity about the way it’s done (there’s just something inescapably slapstick about shovelling someone in the face), and to Larry’s breezy approach to corpse disposal. And while Dr Montgomery’s Frankenstein complex is monstrous, I challenge anyone not to chuckle when you clock that he’s sewing wings onto a two-headed pig.

Ian Berriman has been working for SFX – the world's leading sci-fi, fantasy and horror magazine – since March 2002. He's also a regular writer for Electronic Sound. Other publications he's contributed to include Total Film, When Saturday Comes, Retro Pop, Horrorville, and What DVD. A life-long Doctor Who fan, he's also a supporter of Hull City, and live-tweets along to BBC Four's Top Of The Pops repeats from his @TOTPFacts account.