Overview

• Sydney Sweeney leads as Millie opposite Amanda Seyfried’s Nina Winchester, with Brandon Sklenar as Andrew and supporting turns from Michele Morrone and Elizabeth Perkins.
• Adapted from Freida McFadden’s bestselling 2022 novel, the film is positioned as a psychological suspense story built on secrets, power plays and late‑reveal twists.
• The trailer features an eerie reinterpretation of Sabrina Carpenter’s Please Please Please, paired with tense imagery like bloody glass, knives and flashing police lights.
• Paul Feig directs from a screenplay by Rebecca Sonnenshine, with Lionsgate presenting in association with Media Capital Technologies and production by Hidden Pictures and Pretty Dangerous Pictures.
• The film opens in U.S. theaters on December 19, 2025, with a Boxing Day release confirmed for the U.K. and Ireland.