At a study meeting, Manuel tells Selene, his best friend, that he wants to try something with a girl, Catalina, his romantic interest. To do this, Selene decides to help him by showing him the rules he must follow and the possible scenarios he must face to achieve his goal.

Erica, an American translator, secretly revises a novel set in Barcelona. Everything is fine until bookstore owner Nico invites the credited author, Anna, to the city for a book-signing.