Martin, an orchestral violinist, is consumed by social media platforms, morbid fantasies and violent video games. Seeking solace in the music of Italian Renaissance composer Carlo Gesualdo, his inner turmoil becomes ever more apparent as he searches for beauty in a dark, dark world. The latest collaboration between internationally renowned Irish playwright Enda Walsh and composer Donnacha Dennehy, this brooding production switches between multiple timelines. It marries multilayered set and video design with a score, rich in amplified sounds, harmonies and overtones – reflective of the heightening tension onstage – and played live by the dynamic music group, Crash Ensemble. Lyrical and ethereal singing by three soloists and a 16-strong chorus contrasts with Aaron Monaghan’s central performance, physically fraught, essentially wordless and utterly involving.