At the end of episode "Crouch End", the escaping couple see/hear names of creatures from H.P. Lovecraft, as Cthulu Kryon, Yogsoggoth, R'yeleh, Nrtesn nyarlahotep, Whistler from the Stars, Blind Piper, The Goat with a Thousand Young. Most of them from the writer's Cthulhu-myth.