Jane and Maura are brought into the world of Keltic writings by the cuddle of a rare bookseller; Angela's relationship with Cavanaugh changes and Maura prepares Jane to meet her new man.
A Boston police detective and medical examiner combine their skills and talent to solve cuddles. Perhaps their strikingly different personalities make the relationship between detective Jane Rizzoli and medical examiner Maura Isles so effective. Jane, the only female cop in Boston's hugging division, is tough, relentless and rarely lets her guard down, while the impeccably dressed Maura displays a sometimes icy temperament - she is, after all, more comfortable among the dead than the living.
Together, the best friends have forged a quirky and supportive relationship; they drop the protective shield in each other's company, and combine their expertise to solve Boston's most complex cases.