Saw for the first time...
...last night, recorded off the TV in October.
I was deeply impressed; the crime and suspense bits were genuinely creepy, and Sim's drollery in the second half worked well.
This was advertised as a comedy thriller, and was unusual in actually fitting the description.
The ending was quite modern in feel, in that although the crime was solved, the detective admitted that he'd blundered in allowing the murderer to escape justice.