In the near future or an alternate reality, there are memory detectives, people who have the ability to enter other people’s 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.