The Killings on Jubilee Terrace, by Robert Barnard

This was a good mystery, set on the set of a Northern England soap. The relationships between the cast members don't equate with the relationships of the characters they've played for years, and when actors start dying, the police have to get involved. Bit of a mishmash at the end- veered into psychological suspense, almost, but still a fun quick well-written read.