The release of Apple TV+‘s The Savant has been put on hold. The decision comes three days before the thriller starring Jessica Chastain was slated to premiere on the streamer Sept. 26.

“After careful consideration, we have made the decision to postpone The Savant,” an Apple TV+ spokesperson said in a statement to Deadline. “We appreciate your understanding and look forward to releasing the series at a future date.”

The streamer would not elaborate on the reasons for the last-minute change but The Savant’s subject matter is believed to be behind it, with the storyline and some of the imagery considered possibly triggering following the recent assassination of political activist Charlie Kirk. The series includes a sniper attack and the bombing of a government building, among acts of violence.

From writer/executive producer/showrunner Melissa James Gibson, Fifth Season and Anonymous Content, The Savant follows an undercover investigator known as “The Savant” (Chastain), who infiltrates online hate groups to stop domestic extremists before they act.

“We’re on the verge of serious violence,” Chastain’s character says in the trailer.

The cast is also led by Cole Doman, Jordana Spiro, Trinity Lee Shirley, Toussaint Francois Battiste, and guest star Pablo Schreiber. James Badge Dale will also appear in a major recurring role.

Chastain and Kelly Carmichael executive produce through the former’s Freckle Films banner alongside Alan Poul, Melissa James Gibson, and Matthew Heineman, who also directs. David Levine and Garrett Kemble serve as executive producers for Anonymous Content. Stanley serves as a consultant.