"The Murder Room," from a novel by P.D. James, is an excellent whodunit starring Martin Shaw as Adam Dalgliesh, and that's the problem right there. Though a fine actor, he just isn't Dalgliesh for me. I remember the old series starring Roy Marsden as being more exciting.
The story concerns a lease about to expire on a family museum, and there is one holdout, Neville Dupayne, who does not want to re-sign. The museum features a Murder Room, which displays information on notorious murders that took place between World War I and World War II. Neville, a doctor, thinks the money could be put to medical use.
When Neville dies in what appears to be a copycat murder of a display in the Murder Room, Commander Dalgleish is brought in. He has a lot of suspects to choose from -- the victim's brother and sister, museum employees who stood to lose their jobs, his secretary who is also his ex-mistress, and others. The solution, however, won't be found by investigating only the present day.
Though a good mystery and well-done, it was too long, in part because a subplot dealt with Dalgleish's love life, which I, for one, couldn't have cared less about. I didn't even understand why this woman was so interested in him, as the character was emotionally very uptight and a workaholic.
I found Dalgleish's relationship with his associates unpleasant, and both of them uninteresting.
I can only ask, where's Roy Marsden when you need him. He's only four years older than Shaw.