This dissertation has, as its primary object of analysis, the book L Intrus (The intruder), by French philosopher Jean-Luc Nancy (1940). This book blends poetic writing to proper philosophical reflection, and therefore poses the challenge of a comprehension that considers this double perspective. Based on this first approach to the nature of the book, the central research hypothesis is formulated: the topic of the intruder, implicit in Nancy s book, deals with the deconstructive nature of both the social and the private bodies. Both would work by articulating into a double injunction, which, in the first case, is present in an investigation of the contact between the terms intruder and foreigner, and in the second case, between intruder and strange. Also, the research takes place on a markedly contemporary register. It is the demands, problems and crises of today s world that guide the readings of Nancy s book, the understanding of the notion of hospitality and the redimensioning of the notion of subjectivity.