I saw Red Riding at the Telluride Film Festival. It is a three part story of a corrupt police force in Yorkshire over three different eras, each marked by murders. As the series goes on, the weight of the unsolved crimes accumulates until it reaches a breaking point in the third, 1983.
Each movie was done by a different director, and the first, 1974, was the best. It had the strongest story line and the best acting. Andrew Garfield as a reporter was particularly good. 1980, about the yorkshire ripper, seemed to stand somewhat apart from the trilogy, though it did advance certain aspects of the story of police corruption. The last, 1983, brought the trilogy to a satisfying conclusion and was certainly a powerful bit of storytelling, but I found it somewhat burdened by flashback references to the earlier movies that proved a little confusing given the complex story line.
The series was well received at Telluride and many people thought it was one of the best in the festival. I enjoyed it very much, though I was glad I watched the whole series through in one sitting.