From NetFlix:

Jack Mowbray is a dedicated police officer and a devoted family man. When a vicious serial killer terrorizes Bristol, England, Jack’s obsessive attitude toward the case may nab the culprit while also tearing apart his personal life.

This British TV series comes in 4 discs. Each disc contains 2 episodes. Discs 1 and 2 are one complete story. Discs 3 and 4 are another complete story.

Watching the first story is a bit harrowing. But in fact my experience in general is that British mystery, or suspense, or MI-5 adventures are all tough to watch. Characters get killed. Marriages run into difficulties because of the obsessive attention to crime solving by one of the marriage partners. Some scenes are especially gory. Some characters are really nasty.

Acting in general is almost always professional and wonderful, so much so that British TV of this nature often makes its American counterparts seem weak and tepid.

One example of cringe-worthy acting in story one is the scene in which a Welsh police official is “retired”. You see a tired, stressed, overweight, but not very capable man who has made a muddle of things and mislead the investigation. When he is in an office with two of his superiors and his boss tells him he is off the force, the stream of self-excusing babble that comes out of the poor man’s mouth would embarrass anyone.

Officers come off as crude bullies. In contrast Jack Mowbray is a decent fellow obsessed with finding the serial killer who has moved his killing operations to the very area where Jack lives. Jack’s wife is terrified. Jack’s stressed-out behavior is ugly to watch.

First rate watching if you can stand the tension.