Could one split second change her life forever? Hannah and Si are in love and on the same track - that is, until their train divides on the way to a wedding. The next morning, Hannah wakes up in Paris and realises that her boyfriend (and her ticket) are 300 miles away in Amsterdam! But then Hannah meets Leo on the station platform, and he's everything Si isn't. Spending the day with him in Paris forces Hannah to question how well she really knows herself - and whether, sometimes, you need to go in the wrong direction to find everything you've been looking for...