An Ontological Reflection on The Transformation of Friendship into Enmity in McDonagh's The Banshees of Inisherin by Relying on Heidegger's Being and Time

The film Banshees of Inisherin by Martin McDonough (1970-  ), in the shape of a black comedy-tragedy, shows the transformation of friendship into endless enmity between two friends, interlocutors and companions. This research assumes that the transformation of friendship into enmity shown is based on the ontological difference of two existentialist horizons, and it cannot be simply a temperamental disorder and a social difference or other things such as these.Based on the mentioned assumption, relying on the fact that the two friends are established in two different areas of language, i.e., Speech, Discourse- Language/ Rade and Idle talk / Gerede, an attempt will be made to clarify the difference in horizons that is first revealed to one of the two friends, relying on the book of Being and Time. Finally, its tragic end should be reflected upon and an attempt will be made to show how the distance and ontological difference and the different way of living in the field of language can turn a close friendship into the fire of war and blood continue to convert.Understanding/ Verstehen, it is not possible for one of them to return to the past. The other friend, without the ability to imagine and understand this transformation of Dasein as a friend, tries to turn it into war and fire.