This episode features a young couple, Nick and Honey, who fall under the influence of an older couple given to playing sinister and sadistic games. Nick and Honey are also the names of the young couple who fall under the influence of an older couple given to sadistic games-playing in Edward Albee's play, "Who's Afraid Of Virginia Woolf?"
Tyger Tyger, burning bright,/ In the forests of the night; / What immortal hand or eye, / Could frame thy fearful symmetry?.../ Dare frame thy fearful symmetry? William Blake, The Tyger (1794)
This is the only episode in which Lewis' phone number is revealed to the viewer as 07700 929286.
The provocative and quasi-pornographic photographs taken by Marion Hammond are revealed to have inspired copycat murders in this story. This situation parallels the central notion of Irvin Kershner's 1978 film "Eyes Of Laura Mars".
On the walls of Silas' room are various fictional comic-book posters and covers - including the cover for 'Black Storm' used in the Hustle (2004) episode Missions (2005)