And so another great series goes down the pan, fallen prey to the notion that we want more and more gory detail and breath-panting horror.

DS Boyd, the leader of the cold case unit, is border line psychopath himself. I know the saying is that you set a thief to catch a thief, but this is a bit beyond belief. He would have been demoted to parking crimes a long time ago in real life, just for the way he treats his staff, who are ridiculously loyal to him.

Last night, they left the criminals to meet out justice on their behalf. It was a sorry mishmash of a story that relied on unbelievable changes in character from all the team. Tara Fitzgerald, the ice queen pathologist, now turns out to have another life in which she goes to “private clubs” to pick up passing illegal immigrants. Where did that come from? Up until now she’s worked 24 hours a day in the CCU crypt. Who in real life has all the skills to singlehandedly do the autopsies, test everything that is testable, measure up crime scenes and remodel them on the computer, she does her own DNA testing and the units scene of crime work. No one can do that much on an 8 hour shift. besides which she must have the most well funded lab in the country. It is so uneconomical to have all those machines standing by just in case she needs them in the next episode. Lets not mention the acting – she so overdoes the mad scientist bit that it becomes obvious she only got the job because she can act without emotion.

I’m sure that police get involved with their cases, but does every episode have to link the case to a member of the team and put them in peril? It’s such an over worn plot now.

Maybe the real science is now too humdrum. A DNA match is made and an old crime is solved – no hiding place – no drama.

I’m bored of Boyd – I want to give Eve the heave – dispence with Spence and send Grace back to base. I no longer feel I need to watch this one.