A seventeen-year-old girl hasn’t left her room in an indefinite amount of time. Those like her call them hikikomori, they are teenagers who decide to build themselves a little prison, leaving the outside world outside the door. Her routine is broken when, online, she meets Dev, a boy ten years older. The two fall in love immediately.For her it is the first love. In order to meet Dev, she must leave that cage. But there is someone willing to do anything to prevent her from getting out of there.

In early 1860s New York, Irish immigrant Amsterdam Vallon is released from prison and returns to the Five Points, seeking revenge against his father's killer, William Cutting, a powerful anti-immigrant gang leader. He knows that revenge can only be attained by infiltrating Cutting's inner circle. Vallon's journey becomes a fight for personal survival and to find a place for the Irish people.