Joey King portrayed Gypsy, while Patricia Arquette played her mother, Dee Dee Blanchard.
The plot is based on the life of Gypsy Rose Blanchard and the murder of her mother, Dee Dee Blanchard, who was accused of abusing her daughter by fabricating illness and disabilities as a direct consequence of Munchausen syndrome by proxy. The Act is an American true crime drama limited series that premiered in eight parts on March 20, 2019, on Hulu.