In the midst of a vibrant and transforming Shanghai during the 1940s, a private detective nicknamed "The Cat" becomes embroiled in a complicated disappearance case. What begins as a simple search for a missing young woman soon turns into a labyrinth of intrigue, passion, and betrayal. The victim, the daughter of a prominent businessman, has fallen into the hands of a mysterious criminal organization operating in the shadows of the city.
During his investigation, The Cat encounters a diverse cast of characters, from an ambitious journalist seeking the scoop of his life to a seductive femme fatale who pulls the strings with an almost supernatural power. Each encounter brings him closer to the truth, but also drags him into a world of violence and corruption that threatens to consume him. With his cunning and unmatched wit, The Cat must navigate an urban landscape full of surprises, where every corner hides a secret and every ally can become an enemy.
As he unravels the mystery of the disappearance, he uncovers not only what happened to the young woman but also the dark ramifications that the past has on the present. In a race against time to save the girl and perhaps himself, The Cat must confront his own demons and decide how far he is willing to go for love, loyalty, and the pursuit of truth in a city where nothing is as it seems.