Single Bells is a comedy film that takes place during Christmas. It follows the story of a dysfunctional family who gather together for the holidays, leading to comedic misunderstandings and conflicts. The film explores themes of family relationships and highlights the chaotic yet heartwarming moments that often occur during the holiday season.

Kati and Jonas have planned to get married secretly during their Christmas trip to Mauritius - but in the end, Kati's entire family gets wind of the plan and shows up at the airport to accompany them.