Demirkubuz's films are characterized by their intense, slow-burning narratives and their emphasis on character psychology. His work is often compared to that of the American filmmaker David Lynch, as both directors explore the darker aspects of human nature and the subconscious. Demirkubuz's films are also marked by their minimalistic style, with sparse dialogue and long takes that allow the audience to immerse themselves in the characters' emotional states.
Many of Demirkubuz's films explore the themes of alienation, loneliness, and despair. In 'Fate' (2001), for example, a man becomes obsessed with a woman who is his exact opposite, leading to a tragic end. In 'Confession' (2014), a man is tormented by guilt after killing his wife's lover. Demirkubuz's films often end on a note of ambiguity, leaving the audience to draw their conclusions.