In a modern city, intense regret, obsession, and unresolved longing in the hearts of the living can warp reality, giving rise to illusions known as “Echoes.”
Shen Zhiwei runs a small trauma counseling practice. She can see the fragmented Echoes created by people's obsessions.
She has no supernatural power to dispel the illusions, nor can she rewrite the past.
One client after another comes to her: a widow trapped by the apparition of her late husband, an elderly mother living with the phantom of her son, a businessman unable to move on from past failures...
The illusions are only a shell. The real problem lies deep in the human heart.
Lu Yan, a crisis intervention social worker, meets her while working on a case. They test and mistrust each other as they face human guilt, lies, and discontent together.
Meanwhile, the Echo of Shen Zhiwei's own long-buried obsession is quietly beginning to surface.