Another extraordinary film from Korean director Bong Joon-ho (Memories of Murder, The Host), in which a devoted and deranged unnamed mother (Kim Hye-ja) obsessively pursues her own detective work in a bid to clear murder charges against her childlike adult son Do-joon (Won Bin). Hiring thugs and questioning witnesses, she stops at nothing - all the while getting increasingly overprotective, unpredictable and intense as the real truth turns out to be more horrifying than she thought. Taut, mysterious, full of unsettling dark comedy and truly Hitchcockian in its murder mystery elements, this is another genre-bending success from one of Korean cinema's brightest stars.