While renovating an old communal apartment, an elderly couple found famous etchings by Rembrandt. They had no idea what a priceless treasure was in their hands. But this was immediately understood by the antiquarian, to whom the etchings were brought for evaluation. Refusing to sell the engravings, the couple decided to keep them for a rainy day. However, the antique dealer did not give up the idea of getting these treasures. And his mistress decided to beat everyone else in the marathon of greed and get the etchings at all costs...