An episode that sees Morse and Lewis investigate the death of an artist. This leads to some fascinating discussions about art and famous artists, to the point that I wish I knew more about the subjects. The investigation itself is just as interesting as Morse and Lewis get drips of information and it seems that they'll never unravel the case.
The ending initially feels a bit flat as there's a few unanswered questions. The series does this a lot, leaving things up in the air, to it's detriment. However, this time it's okay as the mystery is largely resolved (unlike many of the previous examples) and crime investigations are often not neatly tied up to the extent that all events are known.
The episode marks a turning point in the Morse-Lewis relationship. After generally treating Lewis with contempt before, Morse now starts to be kinder, for a variety of reasons.
The episode also produces one of the funnier scenes in the Morse series. Morse and Lewis are heading to a garage to interview the owner. Morse knows the owner as he takes his car there to be serviced but asks Lewis to conduct the interview. This is strange but Lewis goes ahead. Turns out the owner is also a Northerner and Morse can hardly understand what's he's saying (neither could I, for that matter)! Morse is essentially using Lewis as an interpreter!