Dave, Sean and Jimmy where childhood friends, but things changed when Dave gets into a stranger's car and the others don't. Twenty five years later all three are completely differently people. Sean is a detective, Jimmy is an ex-convict and Dave is just a shell of a man; never quite recovering from the emotionally scarring events of his past. Their lives come together again when Jimmy's daughter is found brutally murdered, Dave returns home covered in blood and Sean is put on the case to find who killed Jimmy's daughter. 
 Mystic River is a psychological thriller that never really felt right. Not to take anything away from Dennis Lehane; while this is the first book of his that I've read I think he has the talent to write dark, noir-ish psychological thrillers but maybe this is a bad example of his ability. The book opens with the childhood and Dave being abducted by the child molester, which while a terrible thing to happen it didn't feel like Lehane hit the mark with the attempt to be dark and disturbing with this situation. Then the book seemed to drag on and on until the book finally started to pick up pace about half way through. 
 When it comes to the crime, I found it rather weird that they would assign the case to someone that knows the victim's father. Sure it was twenty five years ago but to me it still felt like a conflict. Sure I don't know too much about police procedure but to me that just doesn't seem right. Overall, this book didn't feel dark enough, the writer did seem to make it a dark thriller but I felt like it never got there and fell more into the area of predictable. When I read a psychological thriller, I expect a complicated and twisted story and I don't think I got it here. 
 The book was entertaining and I'm glad to have read it but it wasn't something I would recommend anyone else read. I hope Dennis Lehane's other books are a lot better because while I can see what Mystic River is trying to achieve I think it fell too short. I think the emotions within this novel were too flat and this was the overall problem. I've not seen the movie but I wonder if the tension and emotion worked within it since this adaptation was well received.