Jane and Maura look into the mysterious death of a young boy that appears to have died during an attempted exorcism.
After a student is shot in broad daylight, the investigation soon shows that she was hiding many secrets; Jane's parents get into an argument about the car.
An undercover operation targeting drug smugglers goes wrong, and Boston PD's homicide HQ is next in the gang's firing line.
Jane is offered congratulations at a public event, celebrating her achievements. But she is soon faced with a new case that reconnects her with an old flame.
An apparent sailing accident leaves the oldest son of a Boston Brahmin family dead. Maura's connection to the family, and Jane's resentment of their wealth, put the investigation in jeopardy.