Année 2022. La terre a épuisé la quasi-totalité de ses ressources naturelles. La ville de New York dénombre plus de 40 millions d’habitants sous les effets de la pollution et de la surpopulation. Le détective Robert Thorn est chargé d’enquêter sur le meurtre crapuleux de William Wimonson, un nanti, dirigeant de la compagnie "Soylent". Celle-ci est une multinationale spécialisée dans la confection de produits alimentaires concoctés à base de plancton et appelés "Soleil rouge", "Soleil jaune" et enfin "Soleil vert". Avec l’aide de Sol Roth, un vieillard avec lequel il cohabite, Thorn va découvrir que le cas Simonson n’est pas un meurtre, mais une exécution. Et que celle-ci est directement liée au secret de fabrication du "Soleil vert".
A man who has a body almost completely covered in tattoos is searching for the woman who cursed him with the "skin illustrations". Each tattoo reveals a bizarre story, which is experienced by staring at the scene depicted. When the illustrated man meets a fellow tramp on the road a strange voyage begins.
Twelve boys and girls gather at an abandoned hospital to die for various different reasons. There, they find the body of a dead boy. The twelve boys and girl attempt to find the person who killed the boy. During their search, the reasons why they want to die are revealed.
A doctor performs euthanasia inside his car. His new patient seems unsure of her decision, so the two spend the night together. Adrián tries to convince Marina to move on with her life, but the conversation convinces her to end the last night of her life.
Ludovico accepted the last choice of his wife, out of love. Now he has to find the courage to reveal this to his daughter.