In a modern urban setting, time folds in on itself. Every seven days, a "Night Owl Hour" occurs, pulling selected people into another dimension.
At the heart of the story is the "Dusk Crow Inn," looming in the city's shadows. Each room corresponds to a different horror world. A blood-moon clock tower on the inn's top floor conceals an escape route.
The chosen "Travelers" must collect twelve bronze keys within seven days, but the keys cause human nature to mutate. The inn itself is a trial ground left behind by ancient Watchmen. The true threat is the "Lord of Eternal Night," who is beginning to awaken.