Jane and the team investigate what appears to be a modern-day witch hunt in Salem. Meanwhile, Frankie's old girlfriend returns to town with a surprise, and Jane has no problem speaking her mind about the situation.

The virtual world and the real world collide when a microbrewer is killed. Angela tries to move on from a failed romance by seeing someone new. And Jane and the team begin to mentor underprivileged teenagers, a move that ends in near disaster.

A body is discovered in the church at TJ's christening; Jane almost abuses her power to protect Tommy; Lydia's fiancé threatens to take custody of TJ; budget cuts cause tension at the department.

A musician is stabbed in a bar; the squad realizes that the stabbing victim had something to hide; Jane's father returns with shocking news.

Jane and Maura investigate the mysterious death of a young boy whose family is from Cape Verde. It appears at first that he may have died during an attempted exorcism, and it may take a message from beyond the grave for Jane to pinpoint exactly what happened. Jane is distracted from the case when her mother sets her up on a surprise date.

Jane and Maura are brought into the world of Keltic writings by the murder of a rare bookseller; Angela's relationship with Cavanaugh changes and Maura prepares Jane to meet her new man.

Jane and Maura find a man who died in a bathtub full of ice; while trying to stay cool during a heatwave, Angela discovers a spicy tea that brings unexpected romantic consequences.

Jane and Maura find themselves submerged in the cutthroat, high stakes world of competitive bass fishing when a tournament-leading fisherman is killed. At the same time, Frankie is paying the price after losing a bet.

When the jeweler to Boston's super cool and famous dies, the investigation leads us to a member of the Isles family. That leads to a secret Maura has been keeping for almost all of her life.

The murder of a college student takes an odd turn when Jane and Maura discover he had 32 girlfriends. Uncovering who killed him and why leads them into a world of app developers, virtual boyfriends and relationships built on lies. Meanwhile, Korsak finally introduces everyone to the new woman in his life.

After a student is gunned down in broad daylight, the investigation reveals she had more than a few secrets. Meanwhile, Jane’s mother Angela gets into a spat with her father over the car.

A Revolutionary War re-enactment becomes the scene of a real killing when a soldier turns up dead. Maura's extensive knowledge of American history becomes important as she and Jane try to solve the case. And Maura's brilliant mother, Constance Isles, comes to Boston for an art exhibit.

Jane and Maura investigate a family's background when a man is killed; Jane suspects that Maura is hiding something.

A boy band star returns to his roots for a show and winds up murdered. Jane and Frankie, who grew up with the victim, work hard to solve the case. Meanwhile, Jane and Maura must decide if it’s time to tell Angela the truth about Lydia’s pregnancy just as Angela prepares to throw her a baby shower.

When a former college football player is stabbed inside a carwash during a fundraiser for his alma mater, Jane, Maura and the team must piece together clues to track down the killer. Meanwhile, Frost's mother visits Boston with some unexpected news. And Lt. Col. Casey Jones bumps into Jane and is forced to reveal some startling news of his own.

A man is found murdered inside his doomsday fallout shelter; Jane finds out that Korsak is considering retirement; Frankie keeps a secret.

The team investigates the murder of a wealthy woman with terminal cancer; Maura meets a man while teaching a class.

The team's skills are tested when the mummified remains of a woman are found; Jane tries to recover from a devastating loss.

After a man is found bludgeoned to death on the side of the road, Jane and the squad team up with another detective who believes he is hunting the same roadside killer. Meanwhile, Maura discovers she has had her identity stolen and recruits Angela to help track down the culprit.

The murder of a notorious thief sends Jane and Maura into the world of art heists and forgery and forces Jane to tango with an F.B.I. Agent who has a keen interest in her case. There's also a new man in Angela's life.

When a gun battle rages in a quiet neighborhood, Jane and Maura are thrown into the secretive world of an Eastern European gang; Maura comes down with a fever.

The eldest brother in a Boston “Brahmin” family (direct descendents of passengers on the Mayflower) is found in the harbor dead after an apparent sailing accident. But Maura’s close connection with the family and Jane’s resentment over the wealth they display threaten to derail their investigation. Angela, meanwhile, tries her hand at selling a Polynesian health drink.

Shortly after sailors invade the streets of Boston for Fleet Week, a young girl is found dead. Frost's father, a Navy Admiral, comes to town, causing tension with his son. And, Maura goes on a date with Angela's mechanic.

When a rich financier is found stuffed in a trashcan wearing a cloak and mask, Jane and Maura must figure out what happened. Meanwhile, Maura makes a deeper connection with her biological mother, Dr. Hope Davis, and half-sister, who still doesn’t know Maura is related to them.

Jane is unhappy when a former colleague returns as the new lieutenant of the drug unit; a tip from Cailin causes Maura to investigate Hope.