Imagine waking up in your son's home, not remembering anything from the day before, and being accused of murder. Cantankerous octogenarian Paul Jacobson struggles with short-term memory loss. As he ends up suspiciously close to a bank robbery, a kidnapping, and a drug bust, his granddaughter helps him track down the real perpetrators. Paul juggles two girlfriends and confronts a murderer in this second in the series.

Jacobson becomes an undercover resident at a nursing home to help the Honolulu police track down a sexual assault perpetrator. The police gave Paul the names of three persons-of-interest, but none of the three appear suspicious. Things go downhill when the woman who had been assaulted is found murdered.