The dagger in his smile

There are bad relationships and there are Bad Relationships.  The MacBeths of Shakepeare's "Scottish Play" push the boundaries of evil, to say the least. This summer bass-baritone Eric Owens made his debut as the title character of Verdi's Shakespearean opera, with Melody Moore as his scheming wife.  During the Glimmerglass Festival, we sat down to talk about twisted love, ambition, treachery, murder, and the House of Cards.