Sebastian prepares to take the most important step of his life, marriage. However, what seemed to be the most romantic proposal in history, ends up becoming a nightmare when a video is revealed in which Lucia, his girlfriend, is cheating on him. With the help of his friends, Sebastian will have to rethink where his life is going if he wants to learn how to survive the single life.

After receiving the news that Lucía will be in the film with him, Sebastián's friends organize a bachelor's welcome to encourage him to go out again in the world of dating. Sebastián accepts, but on one condition: ALL OF THEM HAVE TO GO. Between blind dates, diapers and a motorbike, the night ends up being one that Sebastián will never forget.