Criminal police officer Lin Shen has a secret: he never solves cases with evidence. He relies on the “emotions” the killer leaves at the scene.
Portrait artist Gu Yu'an has a secret too: she doesn't draw suspects' faces, but maps their minds.
A university professor's disappearance forces two people who trust no one to work together.
They think they're searching for the truth.
But they don't know the killer is drawing their portraits too.
And behind the canvas lies an answer neither of them can face.
