In Shanghai during the Republic of China, a seemingly conclusive suicide case tore apart the prosperity on the surface of the concession.
Lu Shiqian accidentally gathers three strangers to investigate an endless stream of bizarre murders.
The unsolved cases are unlocked layer by layer, and the organization behind the scenes comes to light.
The detective team joins forces to chase the murderer, relying on each other but guarding against each other.
Hidden missions, age-old blood feuds, and choices about family and country are intertwined.
In troubled times, murderers can disguise themselves as victims.
Companions who walk together day and night,
How much truth is hidden under disguise?
