Could anyone ever stand in for Placido Domingo? The Understudy profiles Simon O'Neill during the 2004 Die Walküre seasons he comes to terms with the exacting demands of the Met. For a tenor of O'Neill's aspirations opera is deadly serious: he must strive for perfection on a daily basis. As O'Neill is asked to sing for his, Domingo, conductor Valery Gergiev assesses the young tenors's chances of survival in the ruthless industry that is opera. www.simononeill.com