The documentary series "Let the Devil In" debuted on MGM+ Sunday. The four-part series tells the story of Thomas Sullivan, who stabbed his mother Betty Ann to death before turning his own Boy Scouts ...

A brand new episode of the recently released horror docuseries Let the Devil In premieres on MGM+ Sunday, Sept. 7 at 9/8c. During this week’s new episode, the small town of Jefferson, New Jersey is ...

Let the Devil In is a documentary series that tells the horrific true story of a murder and suicide that happened in 1988 in ...