"What Lies Beneath" is a 2000 American supernatural horror thriller film directed by Robert Zemeckis and starring Harrison Ford and Michelle Pfeiffer. The movie is about a couple who live in a haunted house, and the wife believes that her lakeside Vermont home is haunted by a ghost or that she is losing her mind. The film opened in 2,813 theaters in North America and grossed $291 million at the worldwide box office, becoming the tenth-highest-grossing film of the year.

The movie is available for streaming on Amazon Prime Video, Hulu, and Google Play. It can also be downloaded from the Internet Archive.