The Ex is a 1996 psychological thriller film directed by Mark L. Lester and starring Yancy Butler, Nick Mancuso and Suzy Amis. It is based on the 1996 novel by John Lutz. The film was released on direct-to-video in Germany on October 10, 1996 and United States on April 22, 1997.
Deidre Kenyon (Yancy Butler) is David Kenyon's (Nick Mancuso) ex-wife and intends to stalk him and wreck his family. She goes to extreme lengths to do this.
Filming took place in Vancouver and Richmond, British Columbia as well as Toronto, Ontario.
Lester said the film "is one of my favorite movies I've made because it has a real European sensibility: really good characters and the scenes between the characters are really well developed. It's an exciting movie and there's lots of suspense."