Season four of 'Monster' has started filming with returning star Charlie Hunnam. As the third season of the anthology series titled 'Monster: The Ed Gein Story' is currently sitting atop the Netflix streaming charts, season four of the series has gone into production in Los Angeles. The fourth season of the Emmy-winning Netflix hit stars season three lead Hunnam along with Ella Beatty and will tell the story of Lizzie Borden, who will be played by Beatty.