The story follows Piper as she is picking up the pieces of her shattered life from a massive breakup two years prior to the start of the story. James has been on autopilot since his mom died 18 months ago. He goes to work, visits his dad, and the cycle repeats. A chance encounter with Piper on the train upends both of their lives. Piper is drawn to James, but he is the type of guy that can undo all of the hard work she's done to rebuild her life. James can't stop thinking about Piper, already messing up the steady algorithm that keeps his life in check and emotions locked away.
