Two psychotic young men take a mother, father, and son hostage in their vacation cabin and force them to play sadistic "games" with one another for their own amusement.
Erika Kohut, a sexually repressed piano teacher living with her domineering mother, meets a young man who starts romantically pursuing her.
George, host of a television show focusing on literature, receives videos shot on the sly that feature his family, along with disturbing drawings that are difficult to interpret. He has no idea who has made and sent him the videos. Progressively, the contents of the videos become more personal, indicating that the sender has known George for a long time.
