"Stir of Echoes" is a supernatural thriller film released in 1999, directed by David Koepp. The story follows Tom Witzky, played by Kevin Bacon, who undergoes a transformation after being hypnotized at a party. He begins to experience disturbing visions and hears voices, leading him to uncover a dark mystery connected to his home. As Tom delves deeper into the haunting experiences, he becomes obsessed with solving the mystery of a missing girl. The film explores themes of perception, the supernatural, and the impact of unresolved trauma, ultimately challenging Tom's understanding of reality and his own sanity.