A doctor's medical studies are threatened by his infatuation with a Chinese girl. The girl returns to China, but complications ensue when she runs into him in Nanking during a Japanese bombing raid.
Adaptación de una novela de Lloyd C. Douglas ("Sublime obsesión", "La túnica sagrada"), cuyos protagonistas son médicos que tienen concepciones contrapuestas de su profesión: unos son idealistas, y otros materialistas.