Roz Chast is an award-winning cartoonist who started working for the New Yorker 45 years ago. Her comics examine our everyday neuroses and anxieties. As an only child growing up in Brooklyn, Chast worried that a fire could break out in the wall and burn up her family. Or that she’d suddenly have an appendicitis attack and wind up in the hospital like Madeleine in that children’s story. Chast hates to drive and is terrified of changing lanes. Now, she’s written a book called I Must be Dreaming about her nightmares and all the wacky things that go on in our heads while we’re asleep. “Now What?” is produced with the help of Steve Zimmer, Lucy Little and Patrick McAndrew. Audio production is by Nick Ciavatta.