On the Rocks chronicles the real-life journey of restaurateur Joseph Costanzo Jr., from his rise to success in the 1990s as a owner of the highly acclaimed Primadonna Restaurant, radio host, columnist, and aspiring politician to his sharp fall in the early 2000s, ending in an investigation and a stint in federal prison. Costanzo is a complex character, whom readers will admire for his confidence and rebuke for his arrogance, will love for his generosity and despise for his egotism, and will learn from in both his attention to detail and lack thereof. This driven, not-your-average-Joe is an unforgettable character who achieves the seemingly impossible but can’t help getting in his own way. Come along with Joe for a bumpy ride On the Rocks!

Maria Costanzo Palmer is a writer and the author of the best-selling book, On the Rocks: The Primadonna Story, which currently has a nonexclusive shopping agreement for film and TV rights. She was recently named as one of the Top 15 Rising Authors to Watch by L.A. Weekly in 2023. On the Rocks was also recently featured in Forbes Magazine as "one of the top books to get for the entrepreneurial-spirited people on your holiday list." Growing up as the oldest child of an award-winning restaurateur, Palmer unexpectedly became a daughter of the incarcerated. This experience ignited an interest in working for Get on the Bus, a nonprofit dedicated to uniting children with their incarcerated parents.