'Criminal Minds' Season 9 Episode 20 Spoilers: BAU Team Investigates Family Feud That Leads to Murder

The elite team of FBI agents in the Behavioral Analysis Unit (BAU) will make their way down to West Virginia to investigate a murder involving a family feud in the next all-new episode of "Criminal Minds." However, the installment won't air until April 2.

The upcoming episode, "Blood Relations," will center on an intense rivalry between the Howard family and the Lee family that eventually leads to murder. According to TV Guide, the official synopsis reads: "When two murder victims are found in a backwoods community in West Virginia, the BAU will uncover a long-simmering feud between two families and must investigate which side could be responsible for the deaths."

CarterMatt reports that fans can expect the Matthew Gray Gubler-directed episode to depict elements similar to "Hatfields & McCoys," except for that it takes place in modern times and the actions of a few are more sinister.

A number of actors will make a guest appearance in Episode 20, including Adrienne Barbeau as Cissy Howard, Tobin Bell playing Malachi Lee and Ronnie Gene Blevins as Miles Lee, reports Hollywood Hills.

Later on in the season, "The Office" alum Brian Baumgartner will guest star on the CBS sitcom as a serial killer. TVLine reports that Baumgartner will play a man who ends up at an unexpected crossroads in his life and then goes on a killing spree in the season's 22nd episode, "Fatal."

Since the series finale of "The Office" aired last May, Baumgartner has guest starred on shows like "Rake," "Mike & Molly" and "Hot in Cleveland."

"Criminal Minds" S9E20, "Blood Relations," will air on Wednesday, April 2 at 9 p.m. EST on CBS.