The Act trailer still

Hulu/YouTube

The official trailer for "The Act" is here. The upcoming true crime anthology series explores the toxic relationship between Gypsy Rose Blanchard (Joey King) and her mother, Dee Dee Blanchard (Patricia Arquette), that culminates in murder.

The trailer introduces Gypsy as a young girl with a host of serious illnesses, and then reveals the big secret: Dee Dee is actually behind her medical ailments. We see Gypsy forced to play along with her mother's lies, but then as she gets older, she begins to rebel. The preview teases her relationship with Nick Godejohn (Calum Worthy), the man with whom she planned her mother's murder.

Needless to say, it's pretty intense. Watch below.

While "The Act" Season 1 centers on the Blanchards, it is intended to be an anthology series, meaning future seasons will share other fascinating true crime stories. The stars of Season 1 include King, Arquette, Worthy, Chloë Sevigny, and AnnaSophia Robb.

"The Act" premieres March 20 on Hulu.