Karin Slaughter has already sent Netflix viewers down a rabbit hole with Pieces of Her, where Toni Collette's seemingly ordinary mother came equipped with a past full of alarming surprises. Now the bestselling thriller writer is opening another family-sized Pandora's box.

The Good Daughter trades that mother-daughter mystery for two estranged sisters, a Georgia town with secrets packed tighter than a superhero's utility belt, and a crime that drags old wounds into daylight. Rose Byrne and Meghann Fahy lead the investigation, but the Quinn family history promises plenty of emotional shrapnel.

Here is the release plan, story, and cast awaiting their next interrogation.

On November 12, 2026, Peacock will release all six episodes of The Good Daughter in the United States, inviting viewers to binge the entire mystery. Each installment runs approximately an hour. Across the Atlantic, Sky and NOW will carry the series in the United Kingdom and Ireland on the same date.

The limited thriller adapts Slaughter's 2017 novel, with the author writing every episode and serving as showrunner. Steph Green, whose directing credits include Watchmen, handles the entire six-part journey. Apparently, no one wanted this particular mystery passed between too many detectives.

Pikeville, Georgia, is where sisters Samantha and Charlotte Quinn survived a violent home invasion two decades earlier. Their mother died, and the surviving family members scattered emotionally and geographically. Sam escaped to New York, becoming a patent lawyer; Charlie stayed home, defending clients alongside their father, Rusty.

Then Charlie witnesses a deadly attack at her former high school. A principal and student are killed, and the resulting investigation draws Sam back at Rusty's request. Family loyalties, conflicting memories, and lingering grief turn the case into a puzzle with several missing pieces.

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And the performers bringing that tangled family tree to life are ready for their close-ups.

Rose Byrne as Samantha "Sam" Quinn: The Physical and Bridesmaids actress plays a successful New York patent attorney who reluctantly returns to her hometown after years of estrangement. Her homecoming comes without a welcome basket.

Meghann Fahy as Charlotte "Charlie" Quinn: The White Lotus star portrays a determined defense lawyer whose firsthand experience of the school attack pulls her toward painful family truths.

Brendan Gleeson as Rusty Quinn: The Banshees of Inisherin veteran plays the sisters' outspoken father, a defense attorney whose controversial and difficult clients make him a polarizing local figure.

Olivia Williams as Harriet "Gamma" Quinn: Known for The Crown and Dune: Prophecy, Williams portrays the brilliant, inquisitive physicist mother whose loss still shapes the family.

Michael Dorman as Ben Bernard: The For All Mankind actor plays Charlie's estranged husband, adding another deeply complicated relationship to Pikeville's already overflowing case file.

Harper Steele as Lenore: The Will & Harper filmmaker portrays Rusty's longtime office manager, a surrogate maternal presence for both daughters.

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Which Quinn family secret are you most curious to see uncovered? Let us know in the comments.