I started watching this cop show under the misapprehension that Simms, who plays Roy Grace here, is the same actor who is a cop on the excellent Shetland. But no, there is a resemblance but they are different actors. (So how odd that this character’s wife is named Sandy, which is the cop’s name in Shetland.) So anyway, I like this show. The plots, though sometimes darker, are also more complex than other police shows. That is perhaps due to the fact that unlike other shows like it that stray from the exact source material plots, every episode of Grace appears to be bas3d on one of the…