The artist asked where his painting was, and the police replied that it had been stolen but they could catch the thief. They also told him to make more copies of the painting. The following night, the thief struck again, stealing another painting of the artist, but what he didn't know was that the artist had 14 copies.

    The night passed, the portraits kept disappearing, and the thief was not caught. Only one painting remained, but the thief didn't come back.

    The police questioned several museum employees, who gave opinions about  the criminal's appearance. One said he was thin and wore a cape, and another said he was fat and had a lot of muscles.

    The police realized that catching the thief would be more complicated than they thought. They considered this and found a way to set a trap for him.

 The next night, the thief came again and got his hands on the painting, discovering that behind it was a large safe. He entered, and the door closed automatically after him. 

    In the morning, the police discovered that it didn't happen as expected.