Continuity mistake: At the morgue, Dr. Isles is trying to help Frost overcome his fear of dead bodies by having him cut into a body. Rizzoli walks in and Frost turns away from the body. He hands the scalpel to the doctor, with the sharp end pointing down. Cut to the next shot and now the knife has turned around and its sharp end is sticking up.
Continuity mistake: In the scene where Angela Rizzoli hands Frank "Frankie" Rizzoli Jr. a bottle of the Polynesian health drink, he gets a bottle with red juice first. But when Angela hands him another bottle for Jane, he holds a bottle with blue juice and gets a second bottle with red juice.