Helena steps off the cattle train onto the grounds of Auschwitz, scheduled to be killed tomorrow, for a crime she didn't commit.
When an officer marches towards Helena and pulls her away, she fears the worst. Instead, he tells her that it's one of the guard's birthdays and orders her to serenade him.
After she sings to the guard, Franz, he orders her life to be saved, forever changing the course of her fate.
What follows is a forbidden love story that saved both of their lives - and hundreds of others.