What is the happiness as to reach it, what key its treasured door - this subject equally interesting to adults and children opens, they devoted the animated film."

The film is a cautionary tale about the need to develop good work habits, personal responsibility and conscience in life.

He visits a friend of his; a scientist who works in a large laboratory with a collection of amazing inventions such as human-like robots, including one which can compose poetry.

The scientist synthesizes a copy of the magical red ball by using a few fragments that were left on the grandfather's hand after he held it while he was visiting his grandchild.

After telling the scientist what he saw, and that he doesn't want his grandchild to live in such a place, they decide to put a special lock on the gates of happiness.

However, she tells him that if he goes to the "Kingdom of Quick Feats and Easy Victories" around the corner, and passes the tests, he will receive a golden key which will open any lock including, presumably, this one.

While the four heads of the dragon try to reach consensus on whether or not to let him in, the boy sneaks in and fulfills all of the ridiculously easy tests, whereupon he is hailed a hero and given the golden key.

Instead, he ends up drunk, and after coming back to the laboratory hits and maims the small robot which put the lock on the door to happiness.

This animated film was released on VHS by the Krupnyy Plan and Soyuz Video companies in the 1990th years in PAL system.