Renowned television writer and showrunner Steven Moffat, best known for his work on Doctor Who and series including Sherlock, is making his debut as a stage playwright. Multiple outlets report that the new play stems from a personal encounter recounted to him by a friend, described in the reporting as involving a “charming killer.”
The articles situate Moffat’s move into theatre in the context of his established reputation in screenwriting and in the Doctor Who fan community. They note that while his Doctor Who work is widely celebrated among viewers, this is his first foray into writing for the stage. Outlet coverage largely focuses on the same origin story—how the friend’s experience becomes creative material for the play—rather than presenting divergent interpretations of the work itself.
Across the three sources, the emphasis is consistent: Moffat is turning to live performance after years of television success, and his debut production draws on the character and tone suggested by the “charming killer” anecdote.