Evil - Season 4

Kristen learns the details of Leland's evil scheme involving her ovum, and Sheryl's involvement in the plot increases the tension between mother and daughter. Meanwhile, David, Ben, and Kristen are sent to investigate a particle accelerator suspected to be a gateway to Hell.

Kristen, David, and Ben look into a possible werewolf attack that isn't what it seems. Andy grapples with his mysterious trauma, while Ben uses science to solve his Jinn problem.

Potentially demonic pork products lead Kristen, David, and Ben to a pig farm to investigate. David increases his remote viewing skills and Leslie, the surrogate carrying Kristen's child, comes to her for help.

A couple seeking an exorcism are plagued by a demon that thrives on taking away the ability to speak clearly, and its influence spreads to the team. Brainwashed, Andy is pushed to deadly measures, and Andrea confronts a new demon attached to Father Ignatius.

The team visits the Vatican as sinister forces besiege the Bouchard house.
 

A possibly-possessed dancer leads Kristen, David, and Ben to a dance troupe with coven-like practices. Sheryl reaches her breaking point with Leland.

Ben and David ride along with a train engineer convinced he's being haunted on the tracks, while Kristen cares for her mother. Ben begins to question his sanity as gaps in his memory create turmoil in his relationship with Renee.

Through remote viewing, David stumbles into the life of a man contemplating murder-suicide and the team rushes to find him. Sheryl carries out her plan to prevent baby Timothy from becoming the Antichrist.

Father Ignatius receives text messages from the deceased Monsignor Korecki leading David, Kristen, and Ben to investigate a company using AI to fake communication with the dead. At DF, Sheryl convinces The Manager to take action against Leland.

With a hurricane on the way, Kristen, David, Ben, and the girls prepare for the worst. However, Kristen is horrified to discover her new neighbor is much more of a threat than the storm. The war between Sheryl and Leland reaches a shocking conclusion.

The team receives disappointing news. Kristen meets mysterious stranger Ellie, who claims to be an old friend of Sheryl's. A game between the two reveals disturbing information about Kristen's future...and about Ellie herself.

Sister Andrea gives the team their last assessment, a man who believes his doppelganger has possessed him and has a personal connection to the nun. The three also look for new jobs, and David receives even more bad news. Dr. Boggs faces a tough decision as Leland's trial begins, and the court turns out to have even more treachery afoot.

The Vatican asks the team to investigate a Hawking-like genius for potential ties to the occult. David's continued aiding of the Entity produces physical effects, and he and Sister Andrea say goodbye to St. Joseph's. Meanwhile, Leland returns home, where David confronts him.

An ominous countdown begins after the Bouchard girls start a new game on their VR goggles. The Entity moves to stop the Sixty, despite Sister Andrea's warnings. The team receives an offer they never expected. Kristen faces a final threat as Leland takes matters into his own hands.