In National Anthem, the debut play by bestselling novelist Colin Bateman, a composer lies prostrate on the floor. Half hungover, half waiting for inspiration, he has been commissioned to co-write an anthem for Northern Ireland with a poet and has a day to do it before flying back to his continental tax haven. The ad-hoc alliance soon fractures as differences emerge. One is Catholic, passionate and pretentious, one has sold his Protestant soul to MOR rock and platinum sales. Can the two sides work in harmony?