‘Innocence’ begins intriguingly with a funeral in a backwater small town, whereupon the supercilious village mayor (Huh Jun-ho) and a number of the local townsfolk are poisoned after drinking rice wine laced with pesticide. The suspect is none other than the deceased’s wife Hwa-ja (Bae Jong-ok), who is taken into custody and promptly charged with the heinous act.
As you would expect, the subsequent plotting will unveil just who the real culprit is, with writer-director Park Sang-hyun opting to do so through a combination of courtroom and investigative drama. Both are driven by the brilliant young lawyer Jung-in (Shin Hye-sun), who returns from Seoul to her birthplace when she hears about the case and then decides to take over from the incompetent lawyer engaged by Hwa-ja’s sister.