A man browsing an antiques market tries to stay calm to avoid overpaying while negotiating for old books. He then notices a greasy black lump, an unwanted object the seller has had for years. The seller prices it at 100, but the man offers only 30. After back and forth, the price drops to 50, and the man agrees to buy it, seeing it as a bargain. Meanwhile, the seller points out a vase with fine brushwork and glaze, prompting the man to ask about its period. The episode ends with uncertainty over the vase's value and significance.