Kate and Sam are best friends, but there’s a tension building in their relationship. When Kate’s sister falls victim to an act of violence, they are determined to bring the perpetrator to justice. On a summer evening, their actions tear a hole in reality as the assailant’s heart falls out of his chest and onto the pavement, just as it begins to snow. Their relationship crumbles in the aftermath and the girls are left to question whether any of us are truly worthy of forgiveness.