BBC's Sherlocktook audiences by storm when it premiered in 2010 — nobody had ever seen Arthur Conan Doyle's detective look this sleek and glamorous for a long time. Always perceived as a Victorian ...

Since Sherlock’s (Benedict Cumberbatch) return, it seems that no one great criminal has stepped up to challenge him. But His Last Vow reveals an evil mastermind at work deep beneath the surface.