Lucas and Katya were boarding school seniors when they decided to have a baby. Seventeen years later, and after a decade of absence, Lucas is newly involved in his daughter Vera's life. But after Vera suffers a terrifying psychotic break at a high school party Lucas takes her to Vilnius, Lithuania, his grandmother's homeland, for the summer. As he uncovers a secret about his grandmother, a Home Army rebel who escaped Stutthof, Vera searches for answers...