I’m in charge of streaming in our household – someone must be. Luckily, there is a joint preference for contemporary crime dramas, even if they involve solving cold cases. It’s one thing the BBC still does well, by and large. We also love a bit of Nordic noir.

Almost without exception, however, the makers of these series can’t resist the temptation to include some cringeworthy back story about one or more of the detectives solving the case.