One day, Pietro and Claudia, two ordinary young people, encounter and suddenly fall in love. Why? The human being has always assigned the idea of love to muddled and inscrutable causes. Actually this feeling is the result of chemical and physical given processes that can be studied. CHEMISTRY OF THE FEELINGS is an amusing documentary which tries to explain what happens inside human body when we fall in love. Switching from characters’story into the imagery of animation and vice-versa, a narrator will lead us to the discovery of the biochemical and psychological laws which govern love’ s daily pains and pleasures.