Qin Lan, a master of cardiac surgery, is calm and authoritative, while Shigure, an anesthesiologist, is gentle and delicate. The two are recognized as "golden partners" by the hospital, and they are also exes who still have a tacit understanding after breaking up for many years. A difficult operation bound the two people tightly again. On the operating table were comrades whose lives depended on each other, and under the operating table were emotions that were constantly being sorted out and confused. When the shadow of a medical accident looms, they must trust each other and find a way out of the dual professional and emotional crises.