The 40 most popular british mystery TV shows, ranked. Click any show for ratings, reviews, trailers, and where to watch.








































British television's defining habit is the short series — six episodes, one writer, a finite story. That structure produced the modern prestige miniseries and a format catalogue the rest of the world keeps adapting.
Mystery series stretch a central question across a season, which lets them develop suspects and setting far past what a film allows. The form's risk is the ending, and its reward is the slow build.