The border between Yunnan and Myanmar is covered with mist, and a series of murders hides all the evil.
Gong Ke was trapped in the trauma he suffered three years ago and was unable to escape. Pu Yun has been shackled and trapped in nightmares his whole life since he glimpsed the cruel truth at the age of five.
Two people who are trapped in the haze of the past, they shed light on each other amidst layers of doubts, and achieve two-way redemption. They investigate the case side by side in the fog at the border, dismantle the many traps set by the murderer, clear the fog bit by bit, and finally uncover the mastermind hidden under the illusion of good intentions. In the clouds and fog, they walk together through this road of overcoming danger, overcoming their hearts, and overcoming their crimes.
