Casa Blanca is a small fishing village on the Gulf of Havana. Nelsa (76) and her son Vladimir (37), who has Down syndrome, share a tiny room in an overcrowded multi-family building. Vladimir is the only caretaker for ailing Nelsa, and Nelsa is the only person to watch over Vladimir, who easily gets into trouble. Their relationship is filled with conflicts: she is trying to control her son, while he prefers to help fishermen at work, have fun and drink rum with them, rather than spend time with his mother. Every day Nelsa wanders the streets of Casa Blanca in search of her only child not returning home early. One day, she falls ill.