The new trailer for The Housemaid, starring Sydney Sweeney and Amanda Seyfried, has dropped, and suddenly, we’re asking ourselves some very important questions. The Housemaid (2025) Official Trailer – Sydney Sweeney, Amanda Seyfried, Brandon SklenarWho is the Psycho in The Housemaid? The movie follows Sweeney as Millie, a young woman who applies to be a live-in housemaid for a wealthy family. But Millie soon discovers that the household hides dark secrets, and by the end of the trailer, it’s clear that she does too. Sweeney or Seyfried?