Judith moved to Berlin three weeks ago and is just starting her career. A new city, a new apartment, her first job - that was her life plan with her boyfriend Christian. But he has changed his mind and won't be joining her. So Judith unexpectedly finds herself on her own. As a psychotherapist for children and adolescents, she is highly motivated to help her young patients, but at the same time has to deal with her new work colleagues, the unfamiliar city and her loneliness. Then she meets marine biologist Martin, who is searching for a humpback whale that has lost its way in the Baltic Sea.