When one of the children in the orphanage went to quarantine for an epidemic, two nurses from the city hospital came to help as volunteers. Sister Betty, one of the two volunteers, soon became the dream mother for all, because she was so gentle and kind to the children. Her loving soul had no idea of the danger of disappointing the expectations of many parentless girls, especially those who were very sensitive. One of them was little Oana, the girl who always wanted to end up in the infirmary, but unfortunately never really got sick. During this epidemic, out of sympathy, the home nurse isolated her together with the sick children, interested somehow if this time the little one will be infected by others. But Oana stayed perfectly healthy, unfortunately she had a real obsession regarding the nurse Betty, the helper from the city hospital. Her kindness and gentleness awakened in her soul the desire to become her mother. When she heard that her dreamed mother was ready to adopt a child from orphanage, she firmly believed that she would be the chosen one. When she found out that Nurse Betty had chosen someone else, she really got sick. The orphanage nurse honestly loved the funny little girl and fought hard to make her well again. She was very disappointed in Sister Betty's choice and made no secret of her anger. Years later, her suspicions became clear. Sister Betty paid hard for her decision, as the home nurse had guessed. Oana, the child who could never be ill, became a medical student, but she could never forgive her dreamed mother.