An Irish filmmaker known for his distinctive style blending psychological horror and dark fantasy, he began his career with short films, gaining recognition with "Foxes," which premiered at the Sundance Film Festival. He made his feature debut with "Without Name," a supernatural thriller exploring themes of nature and perception. His subsequent film, "Vivarium," starring Jesse Eisenberg and Imogen Poots, further established him as a visionary director. His work is characterized by atmospheric storytelling and thought-provoking narratives.