Marianne Moore is a popular West Beverly student, who is fairly withdrawn, tired of the gossip of high school and the lifestyle her parents have encouraged her to live. She hosts a party at her lush Beverly Hills home while her parents are away at the start of the Walsh twins' first year in Beverly Hills. At this party, she meets Brandon Walsh, the new kid in town who doesn't know anybody. They go out on a date and spend a good time in Marianne's hot tub, but Brandon halts it before it goes further.
Marianne finds Brandon a refreshing change from the superficial guys she usually dates, until rumors begin circulating that Brandon and Marianne slept together. Worse yet was the fact that Brandon didn't exactly discourage the rumors. As a result, Marianne is angry because she let herself be vulnerable to a guy who turned out to be no different than the rest. However, Brandon eventually confessed over the school radio station that he and Marianne never slept together. They share a polite detente and Marianne decides to do something crazy, like staying home on a weekend.