‘The Good Daughter’ Stars Rose Byrne and Meghann Fahy on Playing Sisters With Secrets and That Twisty Killer Ending

In *The Good Daughter*, estranged sisters Sam and Charlie Quinn are brought back together by a school shooting in their Georgia hometown and the case against a pregnant teenager accused of carrying it out. As Sam investigates, she uncovers the truth behind the shooting and the long-hidden events that fractured the family, bringing the sisters towards reconciliation.

The six-part Peacock series adapts Karin Slaughter’s novel. The finale reveals that teacher Judith manipulated Kelly Wilson after discovering her husband had abused and impregnated the teenager; Judith killed him and another student during the school shooting. It also exposes Charlie’s past assault and the link between it and the home invasion that killed the sisters’ mother more than 20 years earlier.