Prisoners is your basic child abduction story, but done well. It has good character development and performances, and permutations on the central story which often muddle lesser movies are managed well enough to add depth while retaining clarity.
There are some problems: you must forgive certain contrivances and clichés, and the film becomes just a bit draggy in a couple places. But Prisoners delivers an entertaining story which engages for 2 1/2 hours — no easy task. 7/10
Comparison Notes: Mystic River