The Armchair Detective and the Logical Problem · Series Two

Tearing Debsy away from her latest craze, logic puzzles, Trench looks into a noisy neighbour story with a difference.

Why does Harris play very loud music at such precise, regular intervals?

What is the purpose of a Bank in the middle of a housing estate?

And is Harris' obsession with the Cold War anything to do with the price of fish?

Helped again by Old Tom, Trench needs to take a leaf out of Debsy's book, and start looking at the problem... logically.