The BAU investigates a serial rapist who had been attacking young women at religious schools and stopped for six weeks.
A marine goes missing after a date with a reporter. During the investigation, the team discovers that three former members of his unit are dead and suspect the unit commander to be a serial killer.
When a woman is found dead in her car, the investigation leads to New York Mayor Robert Weldon (Derek Webster), one of Castle's longtime friends.
Lynette tries to talk her mother out of marrying an obnoxious man; Bree runs into Keith's ex-girlfriend and makes a shocking discovery about his past; Carlos starts to worry about Gaby's obsession.
Susan fights for her life after being trampled by the horde of rioters; Paul Young's fate is revealed; Keith is surprised when Orson shows up at Bree's, unannounced; Gaby struggles with ridding all traces of Grace from her life.
