INTO THE MIRROR is an intriguing mix of police procedural and supernatural horror, an unwieldy but effective combination that proved successful enough for Hollywood to attempt a remake (the Kiefer Sutherland-starrer MIRRORS, which upped the gore but lost something in translation in the process). The film's setting is a once-deserted shopping mall, always a choice location for the movies and one that doesn't disappoint here; in places it drips with an eerie, provocative atmosphere.
What I liked most about this movie was the mixing of genres. On one hand there's a serial killer aspect to the murders, which are inventive without being gruesome. Then there's the supernatural touch, which is handled subtly and effectively, particularly in that great twist ending. Finally, there's the police procedural side which dominates most of the running time, and that's interesting too because the cops are humanised.
Ji-tae Yu's former detective Woo, now working as chief of security at the mall, is by far the most interesting of the characters. Although he's saddled with one of those all-too-familiar back stories involving him making a fatal error, the script works well to make him sympathetic and an intriguingly balanced lead. Myung-min Kim's officious detective is well placed as Woo's antagonist and the story that develops is never less than enthralling. A good little movie, this one.