The pen name of a Harvard-trained brain-injury physician who self-published for a decade before *The Housemaid* made her one of the best-selling thriller writers in the world.

A thriller set on a haunted estate, about two women, one in the past and one in the present; Poisoned Pen Press published it on October 6, 2026.1112
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The writer known as Freida McFadden grew up in New York City and studied at Harvard, then trained as a physician specializing in brain injury, practicing in the Boston area.18 She chose a pen name to keep her writing separate from her work as a doctor; “Freida” comes from FREIDA, an online database of medical residency programs.43
While training she wrote a blog about medicine, and in 2013 she self-published The Devil Wears Scrubs, a comic novel about a first-year resident.63 For the next decade she self-published medical comedies and, increasingly, psychological thrillers, among them The Wife Upstairs (2020) and The Locked Door (2021).14
The ebook publisher Bookouture persuaded her to let it publish The Housemaid, about a woman with a secret past who takes a live-in job with a wealthy family; it came out in April 2022 and won the International Thriller Writers award for best paperback original.471 Two sequels followed, and Poisoned Pen Press, an imprint of Sourcebooks, acquired print rights to 15 of her books.13 Paul Feig’s film of The Housemaid, with Sydney Sweeney and Amanda Seyfried, opened in December 2025 and grossed about $396 million worldwide.2
She stepped away from medicine in late 2023, and in April 2026 she disclosed her real name in an interview with USA Today, while saying she would keep publishing as Freida McFadden.5 She published four new books in 2026, ending with The Witch in October.1131411 She lives outside Boston with her family.1
In order of first publication. Each series is kept together, in reading order, starting where its first book appeared. Titles, series and dates from the bibliography in McFadden's Wikipedia entry, with her 2026 books from publisher and retailer announcements; the Housemaid short story is left out.1131412
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Poisoned Pen Press published The Witch, set partly in the past, which one early reviewer called her move into historical fiction.1112
In an interview with USA Today she disclosed her real name, saying she was tired of the secret, and said she would keep writing as Freida McFadden.5
Lionsgate announced a film of The Housemaid's Secret after The Housemaid grossed $133 million worldwide in its first 17 days.9
Paul Feig directed Sydney Sweeney, Amanda Seyfried and Brandon Sklenar for Lionsgate; made for $35 million, it grossed about $396 million worldwide.2
Lionsgate's sequel, with Feig and Sweeney returning and Rebecca Sonnenshine writing, is scheduled for December 17, 2027.910
The Sleepwalker, a thriller about a nurse, is scheduled for March 23, 2027, and the film of The Housemaid's Secret for December 17, 2027.1510