Over the years, Unforgotten has turned into one of the finest shows on British television. By the time it reached its fourth series, which attracted more viewers than ever before, thanks, I suspect, to its growing reputation as a sure bet, it was as lean as an elite athlete. Each episode was perfectly paced and plotted, satisfyingly knotty without being absurd, and the interlaced web of characters always felt human as they juggled their many issues.
One woman held it all together. As Dci Cassie Stuart, Nicola Walker put in a career-best performance and that’s saying something. Cassie was a brilliant copper, dogged and determined, a bit distracted when it came to family matters, but not in that maddening, TV-world, overwritten “fatal flaw” way, and she made solving historical murder cases look easy. She was also,