Human beings are indiscriminately logical beings. They have the rational sense to determine and differentiate right from wrong. They have intrinsic emotions that allow them to react towards objects or beings, which represent potential harm towards their being. Consequently, human beings create sub-emotions such as disgust and distancing to preserve themselves. In Franz Kafka's book Metamorphosis and the film Let Right One, we encounter a situation where Gregor and Eli, the two main characters of each work, are marginalized because of their . Parasites and vampires respectively are creatures towards which society has created revulsion to the point of marginalizing them as a result, both physically and psychologically. This "self-protective" emotional society created by society prevents these creatures from learning the good life to hide and cage themselves, fleeing from society and contributing to the reinforcement of this emotional stereotype. Marginalization occurs when individuals are neglected by society. It is a social exclusion in which society rejects and hinders the possibility of living together and having the same rights. This creates a distance between certain humans or species. As far as animals and humans are concerned, the tendency is to feel a certain disgust. Animals are living creatures that live only for pleasure, act for pleasure and die for pleasure. They are irrational creatures who act only according to their instinct for pleasure. While the human is the proclaimed superior figure, who has a greater rational understanding of the world. This small but vast variable questions the idea of ​​treating these creatures in a deformed ethical way, with indifference and cruelty. Gregor as a human being is already marginalized by his family. His continuous and inexhaustible working life portrays him as a monotonous being who lives only to support his family. ""OH