Fabiana Menna is a young student of mathematics. Late on, while she tries to solve some complicated equations, she feels the necessity of eat. She goes towards the kitchen. When opening the refrigerator she discovers that it's practically empty. Only a rotten hamburger rests on a plate. The girl must make a decision: eats it, or not. So, she eats it. From that moment she becomes the mother of... the mutant excrement!