Jane Rizzoli a homicide detective from Boston well known there was given a new assignment. She wasn't thrilled her captain gave her and her partner. Detective Barry Frost on a new detail. They are to protect a highly well known criminal in witness protection. Jane spoke Italian so she, Frost and the criminal a doctor who specialized reconstructive surgery of mobsters in the United States. Jane had to play a role of being a assistant to Dr. Maura Isles now to be known as Becca O'Malley a coffee broker.