When realtor Jenna can no longer deal with the crushing guilt of her daughters death, she walks out of society to sleep rough on the streets of Vegas.

Emerson Graham's nights as a cab driver are filled with annoyances and inconveniences, but until tonight, never attacks and disappearances. After picking up a mysterious passenger her evening goes from working a job to performing a quest as they must race against the clock to defeat a force of evil. The meter is running.