Lin Yan, a meteorological observer who has been able to hear the whispers of glaciers since he was a child, was sent to the Dawn Research Station in the polar night to perform an overwintering mission. As the sounds coming from deep within the ice became clearer and clearer, he discovered that those so-called auditory hallucinations were actually pointing to the real source of the disaster, and Elsa, a glacier scholar from a foreign country, was also trying to understand the same abnormal sound in another way.
