You build an invisible wall near yourself to protect your loved ones from the horrors of the world around you. But what if one day it collapses? Assistant District Attorney Nina Frost is faced with every parent's worst nightmare - her five-year-old son was abused. Just yesterday, a woman confident in her future decided to take a desperate step - killing a criminal. A shot - and the whole past life is crossed out... Then it turns out that the accused was the victim of a fatal coincidence and is in fact innocent. Who will take revenge for the broken fate of Nina and her child?