It also stars Mark Hamill, Larry Hagman, Verna Bloom, and William Daniels.

Sarah begins drinking alcohol at her mother's party after becoming uncomfortable with personal questions from the guests.

When Sarah becomes inebriated at the party, her parents wrongly blame her teenage friend, Ken.

Jean decides to fire their housekeeper Margaret for raiding the liquor cabinet, but it was actually Sarah who was watering down the scotch after taking illicit drinks.

Sarah starts drinking at school, misses classes and forges notes from her mother.

Though Ken tries to stop Sarah, she rides the horse into oncoming traffic on a busy street.

[1] After its release, NBC aired several television films over the next few years under the title Portrait of a..., including: