When editors acquire fiction, they usually require the author to have completed the entire manuscript. When they acquire non-fiction, they buy based on a chapter or three and the author's reputation and marketability. Don't Wait Up is non-fiction. It's a memoir by Liz Astrof, a fabulously successful television writer and producer who has worked on Two Broke Girls, the King of Queens, and a Tim Allen show I can't remember the name of and wasn't sure which it was when I Googled. I suspect her book was bought on the basis of the first full chapter, which is so funny I almost had to pull off the road because I was laughing so hard while listening to the audiobook. After that, things went straight downhill.
She endured a truly crappy childhood, with nothing funny about it. She and her brother protected each other from their abusive mother until she left when Liz was about six. Liz was happy to see her go. After that, she got "good, kind, clean, beautiful Kathy" as a stepmother. Kathy and her dad weren't abusive, but they weren't exactly loving either. Astrof grew up, endured her 20s, and finally, with the support of her brother who had already become a wildly successful TV writer, moved to Los Angeles to become one too.
Things improved in Astrof's life, and the book becomes funny again, but it never becomes as hilarious as it is in the first chapter. She has a tendency to overuse certain lines in an effort at humor: regarding the Cartier Love Bracelet she desperately wants for her 40th birthday: "In yellow gold. Not rose gold. Not platinum." It's a tribute to how good that first chapter was that I made it through the middle chapters to see if there would be something great at the end. It's good, it's memorable, it's fun, it's a quality audiobook, but she's no Tina Fey or Trevor Noah (who also endured a miserable childhood, but his was funnier).