Fashion designer Su Jin faces sexual harassment and threats from her boss, Zhou Muyan. An accident at a Paris design exhibition three years ago is her fatal weakness. Using his knowledge of the truth behind the accident as leverage, Zhou forces Su Jin to submit. Meanwhile, a mysterious lawyer named Lu Chen suddenly appears, claiming he can help her escape her predicament. Fragments of surveillance footage in his possession suggest that there is more to the accident than meets the eye.
Under pressure, Su Jin begins recalling her time in Paris and discovers gaps in her key memories. The photographs Zhou holds become a new means of threatening her, while Lu Chen's involvement makes the situation even more complicated. The two men engage in a battle of wits, and Su Jin must find a way to survive between these two dangerous figures while uncovering the truth that has been concealed.
As her investigation deepens, Su Jin discovers that Lu Chen's true identity is far from simple. The scales badge he wears closely resembles the emblem of an underground bank in Macau. The Macau casino Zhou mentioned is actually a money-laundering hub, and the security guard on duty has a death certificate and hospital records with conflicting dates. The burn on Su Jin's wrist came from her mother's emotional abuse, and her own obsession with perfection turns out to be the key to cracking a fingerprint lock on a safe.
As the truth gradually comes to light, Su Jin realizes she has long been caught up in a carefully orchestrated conspiracy. She must find balance between justice and evil while protecting her career and personal safety. In the end, she uncovers the truth behind the accident three years ago and finds a path to redemption.