After an accident, psychology graduate student Song Shiyu acquired an ability that could not be turned off - as long as he looked at someone, he could hear the truest voice in the other person's heart.
In order to escape from the noisy thoughts in her heart, she put on sunglasses and lived like an isolated island.
Until a serial murder case broke the peace of Jiangcheng.
Interpol captain Lu Chenzhou discovered that this "socially afraid" girl could always accurately point out the murderer - through a look, a micro-expression, or a seemingly unintentional sentence.
As the cooperation deepens, the two work together to uncover the truth behind each unresolved case: the murderous intention in the heart of the perfect husband, the evil hidden by the enthusiastic neighbor, the password that the victim did not say before his death...
But what Song Shiyu didn't know was——
What she heard may not be the whole truth.
And Lu Chenzhou hid a secret in his heart that even mind-readers couldn't hear.
