SEASON PREMIERE: Last season ended with Norman (Freddie Highmore) killing someone, but doing it as his mother Norma – though, in his increasingly twisted mind, it was his mom (Vera Farmiga) doing the deadly deed. And what this means, going forward, is that both Highmore and Farmiga get to play dual roles. Highmore plays Norman and, on occasion, his embodiment of mother Norma – and Farmiga plays both mother Norma and her son’s imagined killer version of Mother Norma. And that, I suspect, is where much of this season’s true fun will reside.