The BAU hunts a killer who has hidden numerous victims in the walls of a South Carolina home. The trail of clues dates back 20 years.
Wedding bells are ringing as Rossi prepares to marry Krystall (Gail O'Grady). But first, the BAU team travels to Los Angeles to investigate a series of fatal shootings in broad daylight following car accidents.
The BAU travels to Chicago to investigate an unsub who leaves red roses on each victim. Also, Rossi gets an unexpected visit from his ex-wife, Krystall Richards.
After a man is murdered, Magnum poses as a doctor on the same dating app the victim was using in order to find the killer who may be praying on wealthy men.
Maya enjoys dating a professional athlete until she discovers he's seeing other women; Lynn baby-sits while the single mothers in her documentary go to a job fair.
