Under the neon sky of the Day District, where the lights never go out and the night has no rights, private detective John Nyquist takes on the case of a missing teenager. From the dazzling Day District, he moves to the Night District, where darkness reigns. Nyquist soon begins to suspect that his mission is strangely connected to the murders that have plunged the townspeople into the abyss of horror - murders committed by an invisible woman without a face. In the end, there is only one place left to search - Twilight, the mysterious, legendary borderland...