Four top dealers, each with their own private room, compete to buy objects brought in by sellers, with an emphasis on the macabre and the bizarre. If the seller turns down one offer, they are not permitted to return to that room.
In the show, the presenter visits a family's house to find out what they need to raise money for. They then explore the house and its surroundings, finding antiques and valuing them, with the help of experts. The family then goes to auction with the aim of making their financial target. The auction never takes place on the same day as the rummage; often it can take place several weeks later.