Linus Filstrup is an honest boy who has nothing to do with Arlo, his twin brother, who is a real scoundrel and the pride of the Filstrups, a family of thieves and swindlers as it should be.

He was doing well in high school, until the fateful day when he was accused of having stolen a good deal of money. Then he had to start investigating to unmask the real culprit, clear his name and... let his family down again!