A juvenile offender is handed over to authorities at age 13 and placed in an institution in this somber social drama. Martin is a petty thief who enjoys stealing and looks up to his older brother. When he is informed that his brother has died, Martin runs away from the reform school. He passes through various institutions and is labeled as incorrigible because of his refusal to comply with the rules of society. A dedicated child psychologist tries to save Martin when he entertains thoughts of suicide.