Lianna is a 1983 lesbian film about a married woman who leaves her husband to explore a gay lifestyle. Lianna is a wife to a college professor with whom they have two children. She is bored and unhappy in the marriage and takes up a child psychology class to kill her boredom. In college she strikes a relationship with her female lecturer named Ruth. They begin a lesbian affair. Lianna contemplates leaving her husband for Ruth especially after discovering her husband has been cheating on her with a student. Ruth however backs off insisting it will be unprofessional and that she already has another lesbian lover.
Lianna eventually leaves her husband after a fight. She begins to explore her gay side by visiting lesbian clubs and having affairs. In the process she meets Sandy who tries to understand and accept her despite the turbulent history.