Set in Prussia the play is concerned with questions of loyalty, obedience, patriotism and love. The night before he leads his troops into battle, the Prince of Homburg strips off his uniform and goes sleepwalking. Moonstruck, his mind races with a young man’s fantasies – love, ambition and victory. But when morning comes, a single reckless act of disobedience sets in motion a chain of events that leads inexorably to the one thing he never dreamt would happen; his own death.