Beach Party

Frankie and Dolores set out for what Frankie believes will be a private romantic getaway at the beach. However, Dolores has invited other friends to join them, leading to an initially tense realization of the group's dynamics. The couple's expectations of a secluded trip are quickly challenged by the presence of their friends and the lively beach environment.

Professor Robert Sutwell, an anthropologist, arrives at the neighboring beach house to secretly study local teenage surfers' mating behaviors. He observes the teenagers speaking in surf jargon and engaging in their casual, spontaneous behaviors. His research sets the stage for his interactions with the young surfers and Dolores.

Following advice from his friends, Frankie starts flirting with Ava, a Hungarian waitress, to provoke jealousy in Dolores. His actions are part of his scheme to rekindle her attention and possibly reignite their relationship. Ava responds sincerely to Frankie’s flirtation, developing genuine feelings for him.

Dolores accidentally falls into the lap of Eric Von Zipper, the motorcycle club leader, while at the beach, and demands to be let go. Eric refuses and holds her against her will until Professor Sutwell intervenes by using a secret technique to paralyze him. Dolores manages to escape and seek safety.

Professor Sutwell becomes attracted to Dolores and attempts to build a professional relationship with her to understand youth culture. Dolores interprets his interest as romantic, leading to a mutual fascination and flirtation between the two. Meanwhile, Sutwell continues his research while being unaware of her romantic interest.

Frankie, feeling jealous of Dolores's interest in Sutwell, escalates his flirtation with Ava. He eventually decides to confess his love for Dolores, and she reciprocates, leading to a kiss. However, Ava later reveals Frankie told her he loves her too, causing Dolores to break up with him.

Sutwell's assistant Marianne shows romantic interest in him, and he begins to realize his feelings for her. Dolores's interest in him diminishes as Sutwell shaves his beard to appear younger, focusing more on his research than personal relationships. His growing affection for Marianne becomes evident.

Von Zipper and his gang plot to attack Sutwell, but end up sneaking into Dolores's room by mistake. Sutwell hears Dolores screaming and uses his secret technique to disable Von Zipper. The misunderstanding leads to further assumptions about Sutwell's relationship with Dolores from the teenagers present.

Sutwell finally admits his feelings for Marianne and kisses her, but Dolores arrives and realizes her romantic hopes are dashed. She becomes heartbroken and storms off, feeling betrayed as Sutwell's focus remains on his research interests. Frankie, witnessing this, becomes angry and confronts Sutwell.

Frankie enters Sutwell’s office with friends to accuse him of exploiting Dolores. Sutwell counters, claiming both Dolores and Frankie use others to fulfill their own romantic schemes. He then explains that Dolores was only using him just as Frankie used Ava, revealing the underlying deception among the young people.

As peace seems to return, Von Zipper and his gang launch an attack on Sutwell. The surfers come to his defense, and a large fight ensues. The surfers ultimately win, defending Sutwell from the bikers and gangsters, restoring order at the beach.

After the fight, Sutwell offers to take Marianne with him to study in the North Pacific, leaving the beach scene behind. His departure signifies the end of his research and romance, as he prepares to leave with Marianne. Sutwell’s decisions mark a closing chapter on his attempt to understand teenage culture.

Frankie and Dolores reaffirm their love for one another after the chaos. They reconcile, indicating a renewed commitment and the possibility of rebuilding their relationship after all the misunderstandings and conflicts. The movie concludes with the young couple together, looking toward the future.