约翰有能看到别人记忆的特殊能力，他的新案子调查对象是个聪颖却有精神问题的十六岁少女安娜。约翰必须解开谜团：安娜究竟是反社会还是神秘精神创伤的受害人……In the near future or an alternate reality, there are memory detectives, people who have the ability to enter other peoples' electronically aided memories. They often are used to resolve psychological conflicts, and sometimes to exonerate someone from a crime. John was at one time the top in this field but he has been recovering from the death of his wife, and a stroke. To get back into work the head of the small firm he works for offers him what is supposed to be a simple job, getting 16 year old Anna to start eating again. However, the "simple job" turns into his most challenging.