Sherlock

Sherlock

Available on iTunes
The Six Thatchers S4, E1: One mysterious case in particular baffles Scotland Yard - but Sherlock is more interested in a seemingly-trivial detail. Why is someone destroying busts of the late Prime Minister Margaret Thatcher? Is there a madman on the loose? Or is there a much darker purpose at work?
Starring Mark Gatiss, Benedict Cumberbatch, Martin Freeman