You'll find the full text of this episode at https://www.pommesbuddha.com/culture/are-you-bloody-serious-2/.

Further links:

Lucy Mangan's review of Dracula in The Guardian

The 2010 miniseries Sherlock on imdb.com

The 2019 miniseries Dracula on imdb.com

Francis Ford Coppola's 1992 film Bram Stoker's Dracula on imdb.com

Lucy Mangan's review of The Gavin and Stacey Christmas Special in The Guardian

The British TV series Gavin and Stacey on imdb.com

Alfred Hitchcock's Psycho (1960) on imdb.com

The 1998 Psycho remake on imdb.com

The 1994 film Léon on imdb.com (starring Gary Oldman, Natalie Portman, Jean Reno)