Serial box

So, yes, the moment of truth is almost upon us in (BBC iPlayer). Thus far, everything points toward Roz (Thandie Newton) being the baddie, though she has upset the rotten apple cart with the sudden introduction of the dead “Dot” Cottan into the story, which has put her battling nemesis Ted Hastings in a tough spot.

Roz is, most likely, guilty of something, but the identity of Balaclava Man remains a mystery, and you have to wonder why Roz apparently felt the need to cover up the (accidental?) murder of forensics freak Tim Ifield when she could have pleaded self-defence. One thing about Line of Duty: its commitment to diversity is absolute. Steve Arnott is now in a wheelchair, fending off Ironside jokes.