One Night Only

Premarital sex has been outlawed in the United States for three years, with an exception for one night a year. The company Rexton Labs has given everyone wrist tattoos that change color for the 12-hour exemption period.

Owen is the owner of a pizza shop who plans to use the exemption night to propose to his girlfriend Malika. However, when they meet at a sushi restaurant, she tells him of her intention to sleep with someone else that night in their apartment. Allie is a singer who does covers of songs for commercials. She plans to go out with her friend Jacinta to find partners with meaningful connection, but Jacinta quickly pairs off and leaves her.

Owen bemoans his breakup at his mother Linda's apartment. But Linda asks him to leave, as she has plans to spend the night with her partner, Rick. Owen and Allie meet briefly, bumping into each other outside Allie's apartment, but Owen vomits up the sushi he just ate, and they part.

Owen goes to a bar and strikes up a conversation with the bartender, who agrees to hook up with him after her shift is over. He runs around the neighborhood trying to find a condom, but everywhere is sold out. Allie goes to a bar and rejects many superficial suitors before connecting with a piano player who sings "All Out of Love" with her.

Allie and Owen both end up at the same convenience store to find the last available condom on display for $200. They team up to steal the condom, escape the convenience store owner, and recover the condom from a sewer grate. However, Allie snatches it and departs with her date.

Owen connects with another potential partner on a dating app and meets her in Brooklyn Bridge Park, but she robs him of his possessions and clothes. Allie goes to her date's apartment, but the police arrive to arrest him for multiple counts of sex outside the exemption period. Allie and Owen run into each other at the police station and agree to temporarily team up to find partners after they overhear about a party. As they follow the partygoers, Owen tells Allie about his pizza shop, and Allie explains her tattoo of the Little Red Lighthouse.

Crashing the party, Owen gets the attention of a wealthy woman named Vivian, and Allie encounters a musician she idolizes, Ezra Stone. Owen leads them in convincing Allie to overcome her stage fright and sing "Only You" on stage. Ezra brings Allie back to his recording studio, but his behavior ultimately turns her off and lands him in the hospital. Owen brings Vivian back to his mother's apartment, but Linda and Rick interrupt them, so Vivian storms off.

After taking Ezra to the hospital, Allie seeks out Owen's pizza shop, where Owen has also retreated. He makes a pizza for them to share. As they realize that they are starting to fall for each other, Owen gets a call from Malika, who has changed her mind and wants him to come home. Allie considers telling him to stay but ultimately says he should go to Malika.

With the sun coming up, Owen returns to Malika, but quickly realizes he has made a mistake. He goes to Allie's building but does not find her. When Allie returns home, she learns that Owen was looking for her. She finds him at the real Little Red Lighthouse. They go inside the lighthouse to have sex in the final minutes of the exemption, but ultimately decide to wait until next year.

One year later, Allie and Owen stay in together to have sex as the next exemption night begins.