Gwendolyn Manners boarded the Metro at 8:01 pm on a Tuesday night. She was running away from her life, and as she soon discovered, so were the six other people on the Metro with her. But their separate escapes are cut short by a man who tells them to exit the Metro into the dark, empty subway tunnels. His conditions are that if they find their way out before 1 am, they can be free. If not, one person will have to die in order for the others to live. And, of course, there will be plenty of obstacles in the tunnel that will try their hardest to make sure none of them ever leave. Gwendolyn knows escaping before 1 am is their only option, but some of her new companions might have different plans. Everyone around her has a dirty little secret and a shocking reason for ending up on a Metro with her on that quiet Tuesday night.