A remake of one of the episodes written by R. F. Lucchetti for the TV Bandeirantes series "Além, Muito Além do Além" (1968). At the time, this series was presented by Zé do Caixão and in this remake he is presented by his daughter, Liz Marins, with her character Liz Vamp.
A fish caught in the lake in the Perocão region, in Garapari, Espírito Santo, contaminates the people who eat it, turning them into zombies thirsty for human flesh.
Fish are contaminated by a mixture of detergent, shampoo, mothballs, among other things, which is dumped into the seemingly clean waters where the fish swim. After consuming the animal, humans become terrifying beasts.