36-year-old Manuel begins a relationship with Alma, who is only 15. Porfirio hides his sexual yearnings. Sae and Jacca are walking through muddy waters. This film essay allows us a glimpse into the intimacy of various couples. A reflection on reproduction, fidelity, love and death, it juxtaposes sexual conducts of insects and animals with human sexual behavior, offering diverse points of view around the birth, development, and death of erotic love.