Spoilers ahead )**sorry can't remember if this is a thread allowing spoilers but as the final episode has aired ....
I loved this series . It was one of the best detective series I have watched for a while .if you haven't already watched it the latest series of True Detective with Jodie Foster was excellent as well . Slow in bits also but I would watch Jodie Foster in a paint drying ad and she didn't disappoint .
I think the casting with Cush Jumbo and Peter Capaldi was spot on as they are great actors . I have to say that surprisingly he was one of my least favourite Dr Whos , but probably more to do with the writing than him .
I think at times it was a bit slow , but overall kept my attention .
I was quite perplexed as to why Errol had confessed as that didn't seem to make sense . Whilst I am now on board with it - not 100 per cent convinced . I do think the points that persuaded me are ; he had gone through a very traumatic shock , discovering his partner brutally murdered and would obviously have been concerned for the safety of Patrick , if the killer was still about . He was then involved in a car accident which ended up with both he and Patrick injured . I can't remember if he had concussion or not . He didn't know if Patrick was going to be ok . He was then interviewed / kept at the police station for hours . Then taken back to the grisly scene of the crime - twice . At that point I think , lack of sleep , shock , trauma he did start to doubt himself and he maybe thought he did it and Patrick was safer without him . I think I would like to watch the last episode again as I am sure there are bits I missed / misremembered .
However , why does he continue to doubt himself years later in prison . Is he so worn down by the system , adjusting to prison life and has extreme self doubt as no one is routing for him apart from his amazing mum ?
Loved Zoe Wanamaker and Cathy Tyson in this too .
One other bit that I struggled with was they brushed over June giving the recording to solicitor which ultimately put Carol ??at risk .
I thought Hegarty was such a great character as you kept trying to work out if he was intrinsically good or bad or a bit of both .
The finale was good and I wasn't disappointed as it did keep you guessing and the twist with Patrick at the end was good .
I did think that Patrick had been involved in the car shooting and was gutted as thought that he and Errol wouldn't be reunited in the end .
It has been left as slightly open ended as we do not see Hegarty's response to June's discovery about the cartoon . Was he simply racist ? Racist at that time , but tries to atone for it with helping out Patrick . Does he just use Patrick at the beginning to watch over his daughter but then later gets attached to him ?
Did he genuinely believe that Errol was guilty and just "assisted "with putting the evidence together ? I thought that until the cartoon , because earlier he seemed to struggle with the fact that Errol had no violent past . We are given in the last episode the scene where he interviews Errol's dad and learns that Errol had stabbed him , but some years before . Was that enough to convince him ( Hegarty ) thar Errol was guilty and with the trauma of his wife's death / impact on he and his daughter and the pressures from his bosses that was enough for him to wrap it up ?
Sorry for the ramble - often wished I had been a detective 

