Jekyll (UK)
Before Sherlock, Steven Moffat developed a different piece of British literature for the BBC. Robert Louis Stevenson's Strange Case of Dr Jekyll and Mr Hyde became Jekyll, produced in 2007. Have you noticed a pattern, yet?
Jekyll was billed as a modern-day sequel to the Stevenson novel, and it is delicious television. Darker than Sherlock, Jekyll stars likable film and television star James Nesbitt, soap opera actress Michelle Ryan, and comedic actress Gina Bellman (Coupling). All three are playing against type. And it is quite jarring and effective to see these beautiful, mainstream "television people" spiraling down into this dark and twisted maze of a story.
This is fun, engaging, and dark television. Released just as Steven Moffat's star was ascending, it has since been wrongfully overshadowed by Moffat's work in Sherlock, Doctor Who, and the Spielberg film The Adventures of Tintin. Jekyll can stand with any of those titles.
In December 2016 it was announced that Lionsgate films is making a feature film version of Jekyll starring Chris Evans (Captain America).