Conceived as a telemovie, Without Warning is a story of sexual pursuit and intimidation that almost destroys a marriage and eventually leads to extreme violence and murder. When successful film producer Megan Turner and her director husband David are flagged down by an over-zelaous highway patrol, everything appears normal. Although he lets David off with a warning, the Turners' lives soon spiral out of control as he stalks and psychologically intimidates Megan over a sustained period. As the threats increase and the violence worsens, the Turners vow not to succumb.