Ella Beatty and Billie Lourd star as sisters in Netflix's Monster: The Lizzie Borden Story, premiering September 17

On September 17, 2026, Netflix released the fourth season of its Monster anthology series, titled Monster: The Lizzie Borden Story, in the United States. The show stars Ella Beatty as Lizzie Borden and Billie Lourd as her sister Emma, dramatizing the 1892 murders of Lizzie's father and stepmother. The premiere took place at the Paris Theater in Manhattan, with other cast members including Vicky Krieps, Charlie Hunnam, and Jessica Barden. The series was created by Ryan Murphy and Ian Brennan, known for American Horror Story and Glee. Previous seasons covered Jeffrey Dahmer, the Menendez brothers, and Ed Gein.