How does it feel to be a worm? No doubt, it feels Kafkaesque. The Metamorphosis is a story of an ordinary man, Gregor Samsa, who wakes up one morning as an ungeheures Ungeziefer or “giant vermin”. Is this only a bodily change or has his mind been transformed as well? And how do the people around him cope with this? In this paper I am going to examine these issues by using tools from Franz Brentano's and Anton Marty's philosophy of mind and language. Rumor has it that Kafka's stories were not only products of his troubled soul, but were also profoundly influenced by the work of these two philosophers.In my paper I will cover the following issues: the influence of Franz Brentano on Anton Marty and a fortiori on Franz Kafka who was Marty's student in Prague (and thus say something about the School of Brentano); Brentano's and Marty's theory of correct and incorrect emotions and its traces in Kafka's The Metamorphosis; Marty's philosophy of language and communication reflected in Kafka's writings and Brentano's reism in comparison to Kafka's nominalism on the basis of Roberto Calasso's interpretation of Kafka.