Gösta Eriksson, a hairdresser, buys a car from used-car dealer Bertil Planåker. But Gösta soon discovers that the car is a wreck. Planåker won`t give him his money back, in fact he denies ever having seen Gösta. Gösta`s brother Rolle is released from prison and promises to help him. They form an investment company, Parabola, and convinces Planåker to invest a lot of money in it. Planåker has a lot of shady business colleagues who also invest their money. Gösta`s and Rolle`s scam becomes much bigger than they had bargained for.