Can you from this #031

[imitation700mb]

Can I ask a clue, is the coat he's wearing pivotal to the episode?

I was just thinking that he didn't wear it very often, so it could help us get closer to the answer. Could this be The Glamour of the Uniform?

 

[maltrab]

Alright....one last shot.

Brushes at Dawn

Sorry not that one cod

 

[maltrab]

The Black Widow.

Well done Roger