SEASON FINALE: Norman Bates (Freddy Highmore) and his mother Norma (Vera Farmiga) have never been closer, but that’s because Norman has been absorbing more parts of her personality of late. Tonight, after being presented with incontrovertible evidence about what he’s wearing, saying, and doing in his private hours, Norma confronts her son. For her sake, let’s hope it’s not at the top of the stairs. Or in the cellar. Or the shower…