Reformed criminal Ronnie Tyler prepares to leave Midsomer Holm, a tranquil village and halfway house. In the village is an historic camera obscura. New arrival Eddie Marston takes Ronnie’s place,…

Sherlock waits to see where Moriarty will make his posthumous move. One mysterious case in particular baffles Scotland Yard – but Sherlock is more interested in a seemingly-trivial detail. Why…