Dentist David Hurst (Campbell Scott) rushes backstage at a local theater to give his dentist wife Dana (Hope Davis) -- the mother of their three children -- something she's forgotten. She's rehearsing an opera with an amateur group. David sees her as the camera does, through a partially opened door. She is talking to a man, we don't know who, with his back to us. But her face glows with sensuality and longing. At that moment, David's life unravels.
It's a great quicksilver scene -- comic,