There’s something very odd about Mrs Gillyflower’s Sweetville mill, with its perfectly clean streets and beautiful people. There’s something even stranger about the bodies washing up in the river, all bright red and waxy. When the Doctor and Clara go missing, it’s up to Vastra, Jenny and Strax to rescue them before they too fall victim to the Crimson Horror!

‘The Crimson Horror’ airs at 6.30pm on Saturday 4 May on BBC One. To whet your appetite, here are ten hints for the episode…

» Remember the “movie” Wild Wild West?

» Somewhere mentioned by The Ninth Doctor in Rose gets a mention, and Strax is wary of it.

» Matt Smith is channeling a role performed by Benedict Cumberbatch. No, not that one.

» 65 million years ago?

» The Doctor does a lot of kissing.

» Something that happens in ‘The Unicorn and the Wasp’ happens here.

» Fifth Doctor fans will be very happy. Twice.

» Something forbidden in a William Hartnell story is requested here.

» Did Strax just meet the inventor of the satnav?

» A familiar face or two from ‘The Bells of Saint John’ return.

» Clara is faced with an unexpected spot of blackmail.

> Order Series 7 Part 2 on DVD on Amazon.

> Buy Series 7 Part 1 on DVD on Amazon.

Watch the Series 7 Part 2 trailer…

Are you looking forward to ‘The Crimson Horror’? Let us know below…