New BBC One six-parter is precision-engineered cosy crime.

Whats a milder cheese than mild cheddar?

Primula in a tube?

Anna Maxwell Martin and David Mitchell as Lucy and John in Ludwig against a backdrop of a giant crossword grid

Mitchellplays John Taylor, a professional puzzle setter who publishes under the pen-name Ludwig.

Now here comes the genre format: James is a police detective.

But who really cares.

The cast of Channel 5’s All Creatures Great and Small

The result is lightly comedic and quite charming.

(Left at House, a good few rows behind fellow crossword-lover Morse).

Youll have no nightmares here.

David Mitchell wearing a brown suit, white shirt and tie in BBC One series Ludwig

Thats no slight, to be clear.

Some of our best cosy crime is viewed in daylight hours.

And sometimes, after a long day, a mild Dairylea triangle is far preferable to a challenging stilton.

All episodes ofLudwigwill be available to stream on BBC iPlayer in the UK from Wednesday September 25.

Rating:

3 out of 5