Well-made Drama/Thiller

Rating: 8/10 (1 December 2019)

I didn't know what to expect with this one. I missed it when it was in the theaters, but I remember hearing a lot of good reviews.
I just watched it recently, and I thought it was pretty good. Showing a dark side of Boston, perhaps addressing corruption in the police, and perhaps addressing whether kids living in a bad situation should be removed from that, by any means necessary.
I had no issues with Casey Affleck's acting. Some reviews below have made mention of his diction or manner of speaking. I had no problems understanding him. His GF in the film seemed under-written, more like someone there to react to his decisions, rather than an important part of the film.
Ed Harris was his usual great self. Morgan Freeman as well, although in a lesser role.
The ending has also irked some of the reviewers below. The way I see it, many people ended up dying for no reason, maybe they weren't good people, but they died, all just to take this little girl out of her bad situation. Yes, she was returned to her mother in the end, but what message does it send if people with money and connections are able to decide the fate of whether a child should stay with a parent or not? The ending actually is more hopefully. While she is back with her neglectful mother, she has gained a stable male figure (Casey Affleck's character) in her life as well.
A pretty good drama thriller, as dark and dreary as it is, the ending is actually hopeful and reasonably 'happy'.