Marc is a young hairdresser in Brussels who is crazy about cars. Hoping his boss will lend him his Porsche 911S, he has entered for a rally. However, his boss says he is using the car that weekend. After failing to con a dealer into a loan, he decides to sell everything he has. In the process he meets an attractive girl called Michèle, who supports his plan, and the two end up shut inside the Brussels Motor Show for the night.