A decade-old cold case is reopened, and the same blood-red rose is found at all three crime scenes.
Gu Xingzhou, the stoic captain of the criminal investigation team, lures Wen Yu, a profiler who has shut himself away from the world, back to the squad with three discount lunch boxes.
One trusts the evidence; the other trusts people's hearts. One is used to standing in front of the other, while the other always tries to push people away.
A red rose in a sealed room, a parcel locker on a rainy night, a sacrificial ritual in a mountain village: each case brings them closer to the truth, and closer to each other.
Gu Xingzhou says, "If you trust me, I'll find a way forward."
Wen Yu smiles through red-rimmed eyes. "Everyone I've ever trusted is dead."
But when the evidence turns against Gu Xingzhou, Wen Yu steps in front of him without looking back. Only then does he realize that the person who set the trap all those years ago wanted someone alive to stand by Wen Yu's side.
And that person can only be him.
Like! The two people have a long-lasting relationship💕