Sherlock Holmes is asked to investigate a murder but prefers to help Detective Inspector Lestrade solve a series of puzzles set by a sadistic bomber who has abducted hostages. The episode airs on BBC1 on Sunday nights featuring Benedict Cumberbatch as Sherlock Holmes, Martin Freeman as Dr. Watson, and Rupert Graves as DI Lestrade. Scenes take place in dark locations in London and include gunshots, dialogue, footsteps and shouting, accompanied by a dramatic musical score. The target audience is 16+ and reactions may differ between genders. Beyond the TV airing, the show was also promoted through DVD and online platforms.