10-year-old Harriet dreams of leaving her home, where she doesn't feel she's needed by her mother and sister Gwen. When her mother dies in a car accident, she really starts to make plans for leaving and she finally does so together with her childlike (mentally ill) friend Ricky.

本片根据美国著名侦探小说作家列克斯·斯道特(Rex Stout)的系列作品改编。
天才侦探尼洛·伍尔夫和助手阿尔奇·古德文是纽约一爱侦探事务所的搭档，一个身宽体胖、其貌不扬，却是声名远播的大侦探，他办案从来都是足不出户，索价高昂，生活奢华；与一个机智幽默、风流倜傥的助手的绝妙配合，接手过各种刑事案件的调查，无论案件多么扑塑迷离，在大侦探及其助手天衣无缝的配合下，用他们天才般的推理，一一告破……