This show has to be, without a doubt, one of the best crime/drama shows ever written and portrayed by a cast of fantastic actors. It's set in the 60s. Even the filming gives it the vintage feel as they tackle crime(s) and some of the same social issues we experienced here in the United States during the same era. Even more, it is set in the days before DNA was even a forethought. They had to solve the crimes with intellect and reasoning. The show is set with an older, seasoned cop teamed with a younger, gung ho cop who is not afraid to take shortcuts as he learns the ropes of how crimes are really solved. There are times when you will love the younger cop and times you will want to give him a backhand. As with most British crime shows, their ability to keep you in the dark as to who the killer is is quite amazing. You can't go wrong with this show.