In 1974, Kate Mularkey becomes best friends with the cool new girl at school, Tully Hart. As Tully becomes a celebrity news anchor and Kate chooses to be a stay-at-home mom, their friendship full of love, jealousy, anger, and laughter will shape their lives over the next three decades. I loved the dynamics of the relationship between Kate and Tully, watching them renegotiate their friendship and struggle with their codependency as they each grew in different directions. If you are looking for a great book club book to discuss with your girlfriends, Firefly Lane would be an excellent choice.