In the oceanside village of Iyi, the revered Mama Efe acts as an intermediary between the people and the all-powerful water deity Mami Wata. But when a young boy is lost to a virus, Efe’s devoted but rebellious daughter Zinwe and skeptical protégé Prisca warn Efe about unrest among the villagers. With the sudden arrival of a mysterious rebel deserter named Jasper, a conflict erupts, leading to a violent clash of ideologies and a crisis of faith for the people of Iyi.

Gaia and Cristina come from two very different backgrounds. But their friendship is like nature: rebel and pure.

In a small town in West Africa, the bodies of mutilated children are discovered. The population is gripped by psychosis and Mami Wata, an aquatic goddess, is accused of being the cause. Issa, a police inspector obsessed by the disappearance of his own child, decides to investigate the case. With the local police chief, Malika Dramé, they embark on a terrifying investigation, where the beliefs of some serve the power of others. A dark film, without concession, which denounces certain evils of Africa at the risk of awakening the spirit of the river…