Interview: Isabel Gillies Now, how do I know Isabel Gillies? The answer is lost in the sands of time. We have several mutual friends, perhaps that’s how. She has had a very interesting, varied career. She is an actor who appeared, among other places, on the TV show Law & Order: Special Victims Unit and in the movie Metropolitan. She’s also a highly successful writer. Her bestselling memoir Happens Every Day: An All-Too-True Story recounts the story of how her first…