In a live house in Tokyo, a musician named Baby plays a dreamy and beautiful melody on the piano. Few people know that this man has another identity, that is, Sakura Hongtori (played by Go Ayano), an obstetrician at a comprehensive medical center. Hongtori has superb skills and unparalleled art. He can make calm and accurate judgments no matter how critical and complicated the situation is. Moreover, he has a gentle personality and is extremely dedicated to his work. Even if he is playing, he will immediately stop the performance and rush back to the hospital once he receives a call from the hospital. Of course, a professional and responsible medical team is indispensable. 28-year-old female doctor Shimoya Kae (played by Matsuoka Moyu), midwife Komatsu Rumiko (played by Yoshida), and Hongtori's colleague Shinomiya Haruki (played by Gen Hoshino) are all his most trusted partners. The warm obstetric ward is full of love and hope because of this group of people... This film is adapted from the novel of the same name by Suzuki Yuki.