Switzerland, 1873. Men from all over Europe are flocking to a tiny village to work on the biggest and most spectacular construction site of modern times: the Gotthard tunnel! The town is bursting at the seams and the prices for rooms are skyrocketing. In the bustle and confusion, three young people forge a friendship that defies differences of social class to tackle dramas together: the German engineer Max, lucid, balanced, born to a well-to-do family, a born mediator and shy suitor to the innkeeper's daughter, Anna.
