This is produced as a three part crime series but it is based on the memoirs of an actual met detective, Colin Sutton and the hunt for a serial killer. Martin Clunes plays the lead role very well, bringing a down to earth seriousness to the role that is hard to reconcile with his other TV roles involving comedy. All the cast give good performances and portray very well the huge effort that goes into solving crimes when evidence that will convict is hard to come by. There is some tension between characters but it doesn't evolve into the melodrama that soaps and thriller crime series descend to. It all seems very real and true to life. It paints things as they are, as a documentary would, but is satisfying as a drama. The production team must have put a lot of effort into trying to do justice to the memory of the real life victims. In my view they can be proud of what they achieved.
Based on the true investigations of DCI Colin Sutton, this looks at his handling of the murder of a young woman who was found fatally wounded in the middle of a London park.
The series is very detailed, looking at the different elements of the investigation as well as the horrific trauma suffered by not only the victims who survived, but also the families of the murdered women.
The cast are excellent. Martin Clunes plays Sutton as a deeply moral, committed & genuinely decent man who is horrified by what he is investigating and is determined to track down the perpetrator to get justice for those affected by these horrific crimes. Also, special mention must go to Celyn Jones as Levi Bellfield. His performance is so accurate, it's scary. His portrayal of Bellfield gets under your skin and stays there, haunting you and almost making you retch.
Both this and the 2nd series are excellent and both worth a watch, showing again how well ITV can make dramas.