I'm a big fan of crime dramas and always have higher hopes for British ones. I really enjoyed D.C.I Banks particularly because the stories were really gripping and I always love a good 'who dunnit?' mystery which most of the episodes are. The series follows D.C.I Alan Banks and the Serious Crimes Unit and a series of murder mysteries which the force are called to. Each double episode (there were three stories so six episodes) has a self contained plot but the character's own subplot stories continue throughout the whole series. The very first double episode isn't quite as good as the second and third (my main reason for 4 stars) but it's still really great so push past if you find it a bit slow. The storylines are actually really clever especially 'Friend of the Devil' and 'Cold is the Grave' and got quite creeped out by the latter as it's so well written.
UPDATE!! - As I purchased this DVD but reviewed it based on watching when it was broadcast on TV, I've only just noticed a lovely surprise. I didn't know before this series, there was a double episode called 'Aftermath' that was broadcast in 2009/10 and this is included in the box set so an extra double episode for you - which was actually very good also!
D.C.I Banks himself takes a while to become likeable but I really grew to like him as the series progressed, and that's the same for the other characters but as they are more revealed you grow to like the whole team.
The acting is pretty good too, not really amazing but enough to keep you interested. Overall, a good crime drama that keeps you guessing with really original story lines. I'm hoping for another series.