Cristina and Susana have been best friends since high school. Now, both over 30 years old, they are still living like they did in their teenage years. Or maybe they never grew up.
In Santiago, Chile, the schoolteacher Luisa proposes a debate about sex with the parents of her students with the intention of giving classes about sex education to the youngsters.
A man takes his insecure, overweight paramour to a seaside resort to consummate their relationship, but there he stumbles onto an artistic discovery that will change his life.