Cafe owner Nin’s mundane but contented life is shattered forever when his fifteen-year- old son Ming slashes his mother and younger sister to death one evening. Diagnosed with acute schizophrenia, Ming is remanded to a psychiatric prison indefinitely until full recovery. Aside from visiting his son twice a month, Nin continues to lead a pedestrian existence, while memories of his wife, daughter, and son keep flooding into his head. As time passes, Nin has given up on knowing the reason behind the misfortune. He only wishes that one fine day, Ming, his sole remaining family but also the murderer of his family, will come home again.