Maura was forced to deal with some major father issues on this week's Rizzoli & Isles. On the summer finale, though, the focus will shift back to Jane and a blast from her scary past.

Michael Massee will guest star on "Remember Me" as serial killer Charles Hoyt. As teased in the following promo, look for him to claim he has insight into a murder that takes place inside a prison bathroom.

Elsewhere on the summer finale, Frankie Jr. prepares for the detective's exam.