Mistress is a 1987 television film written by Joyce Eliason and starring Victoria Principal as Rae Colton, a beautiful woman in her middle thirties who is having an affair with a rich, married man named Wyn Brooks (Don Murray).

The relationship with Wyn carries on for nine years, and while he takes care of her financially, she hopes that one day they can marry and possibly have a child.

With much time on her hands due to Wyn's support, Rae fills her life with acting lessons and her friendship with Margo, another aspiring actress.

While Rae aspires to get to that level, she becomes somewhat complacent over time, not having any immediate financial worries because of her seemingly comfortable situation, as Wyn has provided her with a home and vehicle.

She returns home to Utah to visit her mother, Deanie, and begins a relationship with Burke Johnson, a former high school classmate who has always been in love with her.

Rae calls Burke and asks him to meet her in Las Vegas, where she hopes to convince him to resume their relationship in California, away from her mother's influence.