[1] Mr. Bozzi is the owner and lessor of many apartments and houses in Brooklyn's immigrant communities.

To prevent beggars from knocking or ringing his bell, he has trained himself to make dog noises.

When one day a fairy tale seller appears to him, she curses him into a dog that only human love can transform back.

Bozzi, pushed around, hungry, unwanted, experiences life as merciless and cold.

Pursued by other dogs, chased away by people with whom he can no longer communicate, he roams the streets until he meets the boy Tonino, who takes care of him.