Alexandra's Project is a 2003 Australian drama thriller film written and directed by Rolf de Heer and starring Gary Sweet and Helen Buday.
He turns the TV and VCR on, and begins to watch a tape made for him by his wife, Alexandra.
As it progresses, however, it becomes clear that the tape is designed to humiliate and torture Steve for marital problems that Alexandra has been stewing about for years.
As part of her 'show', Alexandra feigns breast cancer, has sex with their neighbour, and tells Steve that neither she nor their two children are ever coming home.
[1] De Heer originally wanted to make the film so he could use a single location and use up various fragments of ideas he had accumulated.