In a rain-soaked Gothic city, a detective stands on the edge of a high-rise building, his trench coat flapping violently in the strong wind. The camera slowly pulls back from his determined profile, revealing a bird's-eye night view of the entire city, where neon lights are blurred by the rain. A voice-over rings out: "In this city, everyone has a secret." Finally, the camera zooms in rapidly on a mysterious badge in his hand, and the screen fades to black.