When Rizzoli investigates a murder where cutting techniques similar to those of imprisoned Warren Hoyt but involving necrophilia (as determined by medical examiner Maura Isles), she is called by FBI Agent Gabriel Dean to Washington, DC. Dean shows her a list of similar crimes committed in Bosnia, and terms the suspect "The Dominator".
Hoyt escapes from prison after reading about "The Dominator's" murders which copy many of his techniques, and plots with him to trap Rizzoli. Eventually, "The Dominator" kidnaps Rizzoli as she returns to Boston, and takes her into the countryside. While trying to kill Rizzoli, she fought back and killed "The Dominator" and severely wounded Hoyt, making him a quadriplegic.