After several miscarriages, Tereza's gynecologist, in an attempt to cheer her up, jokes she should try to conceive with a different partner. This remark shakes up her monotonous life and steers it in a new direction.

This is a story about Paulina P. in which we follow her adventures in class and at home, as well as all the problems she successfully overcomes during the school year. The movie is based on a famous children's book in which she talks about her friendship, love, and family-related problems through comic situations. The plot of the movie itself is set in the real world, with a touch of "magic".

Two main characters, Cricket and Antoinette, represent two separate worlds, the world of noise, chaos and creativity on the one side, and the world of work, order and discipline on the other. As they fall in love, in spite of obvious differences, they manage to create harmony.