Diner

In 1959 Baltimore, friends attend a Christmas dance before driving to Fell's Point Diner. Fenwick stages a fake car accident on the way, which annoys the others. Boogie has placed a $2,000 basketball bet and refuses Bagel's offer to cancel it.

The group arranges Eddie's New Year's Eve wedding by having Billy serve as his best man. Modell agrees to give Eddie a ride home, while the others pick up Billy in town. This sets the stage for the wedding drama to come.

The next morning, Billy reunites with Eddie at Eddie's mother's house. They then head to their old pool hall, reflecting on friendships and the oncoming year as they unwind from the night before.

Shrevie learns Boogie is taking a date to the movies. At a screening of A Summer Place, Boogie tricks his date Carol into groping him through the popcorn; she runs away in tears, but Boogie convinces her it was an accident and the date continues. Billy retaliates by punching an old high school enemy after.

Billy visits Barbara at the local TV station; later, at church, she reveals she is pregnant from a prior night they spent together and warns him not to feel obligated to marry her. This complicates expectations around relationships.

At the diner, Shrevie discusses married life with Eddie while Eddie prepares a football knowledge test for Elyse to determine if they will marry. The moment captures the tension between commitment and independence among the friend group.

After losing the basketball bet, Boogie wagers with his friends that he can have sex with Carol, renewing his scheme to win the money. The dynamics among the group become more tangled as the bet looms.

The morning after, Boogie and Fenwick encounter an equestrienne named Jane. The encounter introduces a new dynamic into the group and foreshadows later relationships.

The group awaits Elyse's test results; Elyse fails by two points, and Eddie calls off the engagement. The wedding world shifts as the older generation's expectations clash with the younger ones.

Boogie disguises Beth as Carol using a wig in an effort to win the bet, driving Beth to Fenwick's apartment to verify the encounter. Fenwick and Shrevie hide in a closet to confirm the ruse, but Boogie ultimately confesses the truth and urges Beth to work things out with Shrevie.

Shrevie, Eddie, and Billy are arrested after Fenwick occupies the Nativity scene in his underwear during a screening of The Seventh Seal. In the holding cells, Eddie learns Elyse's test is the next night and Billy faces a belligerent drunk; their fathers bail them out, while Fenwick spends the night in jail.

Eddie decides to marry Elyse after all, and the wedding proceeds with a Colts theme. Friends bring Jane, Barbara, and Diane as guests, and Shrevie and Beth reconcile. Modell delivers a heartfelt speech as Elyse's bouquet lands on the friends' table, closing the film with a note of camaraderie.