Anna leads a safe, ordinary life with Paul - until her teenage crush Samu shows up with his girlfriend Siena. Over dinner with the old crew, it becomes brutally obvious: everyone else has been living bolder lives. When Siena proposes a daring game, Anna and her friends face a choice that could upend everything they know.

The game begins: keys are drawn. New couples head into the night. And while each of them "plays" in their own way, the evening takes a turn that absolutely no one anticipated.

Anna craves a second round. To talk her out of it, Paul promises to reignite their spark on his own terms. Meanwhile, Bella and Leo are riding the game's high but drowning in parenting chaos. Julie and Valentin seem closer than ever - as long as you don't look too closely.

Anna has talked Paul into it: there will be a second game. But when she delivers the news to Samu, he drops a bomb - his job is pulling him back to Ibiza. To keep him here, the solution runs through Paul of all people.

The second Game of Keys - bigger, bolder, and more dangerous. Anna and Samu have a secret pact. Julie and Paul can no longer ignore the pull between them. And Anna is about to learn the hard way: you can't always get what you want.

Samu has planned a surprise date for Anna. Will she accept his invitation? Meanwhile, a career-making opportunity lands in Julie's lap - until Mica calls.

Anna and Bella face the pinnacle of their careers: a celebrity wedding. But neither one of them can focus. Paul and Samu are supposed to present their joint project - except Samu has vanished.

At Siena's extravagant birthday bash, the crew plays the Game of Keys one final time. For everyone, a choice is coming that will reshape their lives from the ground up.