I've frequently complained that certain Brokenwood Mysteries themes come up too often, making the mysteries unoriginal/predictable/boring. This is definitely not a boring episode - there's a fair bit of humour, especially with Gina, and the plot is different ... I just found it the murder scenes a bit to full on, clever though. However, even though I don't like many of the mysteries, it amazes me how much empathy there is for the killer and their loved ones - most of the wrap-up scenes really tug at the heart strings to some extent. And of course, I love the regular characters and their ongoing jokes.
Review of The Garotte and the Vinkelbraun
