Black Mirror is a science fiction anthology series that explores the dark side of technology and its impact on society. In the episode 'The Entire History of You,' Benedict Cumberbatch lends his voice to the character of Liam, a man who uses a futuristic implant called 'Grain' to record and replay his memories. As the episode unfolds, it delves into themes of jealousy, obsession, and the consequences of living in a world where every moment can be recorded and scrutinized. Cumberbatch's nuanced voice acting adds depth to the character, making this episode a standout in the Black Mirror series.