Jean-Noël Tavernier is a big-hearted guy, a former professional driver with a love for powerful cars, determined to reconnect with his lifelong passion thanks to a 600-horsepower Porsche he rented through a classified ad, unaware of the mess he was getting himself into. He also has a big heart, torn between his daughter Emmanuelle and her teenage moods, his supermodel mistress Cléo, and a grumpy wife who hires an overzealous private detective to follow him.