Brittany Snow has joined the cast of The Housemaid’s Secret, Lionsgate’s sequel to last year’s surprise box office hit The Housemaid. The actress will play Marybeth, an unassuming receptionist at the company owned by the story’s central male character, adding another key player to a growing ensemble led by Sydney Sweeney, Kirsten Dunst, Paul Anthony Kelly, and Michele Morrone. The casting marks the latest step in Lionsgate’s efforts to build The Housemaid into one of its next major thriller franchises.
Snow’s addition continues to strengthen a cast that has steadily expanded since the sequel entered development. Sydney Sweeney returns as Millie, the housekeeper whose troubled past once again places her at the centre of a dangerous mystery. Kirsten Dunst joins as one half of a mysterious wealthy couple, while Paul Anthony Kelly plays her husband. Michele Morrone reprises his role as Enzo, with Snow’s Marybeth emerging as a new figure whose seemingly ordinary job could hide far more than it first appears. In a story built around deception and concealed identities, even the most understated characters rarely remain on the sidelines for long.
Based on Freida McFadden’s bestselling novel, The Housemaid’s Secret follows Millie as she accepts another live-in housekeeping position, this time working for a woman she is forbidden from seeing. When curiosity eventually leads her beyond a locked door, she uncovers secrets even darker than her own. Like its predecessor, the sequel leans on psychological suspense, hidden identities and mounting tension inside an isolated household where every character appears to be concealing something.
The adaptation also reflects Hollywood’s growing interest in bestselling thriller novels with established readerships. McFadden’s books have built a devoted global following, making The Housemaid one of the most sought-after contemporary thriller properties for film adaptation. With audiences already familiar with Millie’s story through the novels, Lionsgate enters the sequel with a built-in fanbase alongside the momentum created by the first film’s commercial success. While the uploaded source does not discuss BookTok specifically, it does position the series as an expanding franchise built on McFadden’s novels.
Behind the camera, Paul Feig returns to direct after steering The Housemaid to a remarkable $400 million worldwide on a reported $35 million production budget. Rebecca Sonnenshine is once again adapting McFadden’s work for the screen, while Feig also returns as a producer through Pretty Dangerous Pictures, alongside Sydney Sweeney’s production company and the film’s returning producing team. Lionsgate has scheduled the sequel for a December 17, 2027 theatrical release, positioning it for the lucrative holiday box office corridor.
The success of the original film has significantly raised expectations for its follow-up. Turning a modest production budget into a $400 million global box office haul, The Housemaid became one of the industry’s biggest sleeper hits in recent years. Rather than simply capitalising on that success, Lionsgate appears to be expanding the creative scope of the sequel through a larger ensemble and an experienced returning filmmaking team as it looks to sustain the franchise’s commercial momentum.
For Snow, the project represents another step in a career that has increasingly moved toward suspense-driven storytelling. After becoming widely known through commercial successes such as Pitch Perfect, John Tucker Must Die and Hairspray, she has recently embraced darker material with projects including The Hunting Wives, The Night Agent and A24’s X. Joining The Housemaid’s Secret continues that transition, placing her in a psychological thriller where seemingly ordinary characters often become central to the mystery.
Lionsgate’s ambitions extend well beyond a single sequel. As noted in the uploaded source, Freida McFadden has already written a third novel, The Housemaid Is Watching, providing the studio with additional source material should the franchise continue to grow. With multiple books available for adaptation and reports of a stage version also in development, The Housemaid is increasingly being positioned not as a one-off success, but as a long-term thriller franchise with room to expand across multiple formats.
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