When Irena Gut witnessed a Nazi officer murder a baby and its mother in front of her eyes, she could do nothing. Then and there, she made a vow to God that if she ever had the opportunity to save a life, she would do it. But she did much more than that. When she was appointed the housekeeper for a German major, the highest-ranking German officer in Tarnopol, Poland, Irena saved thirteen lives by hiding twelve Jews in her employer's basement, without his knowledge, for eight months. The thirteenth life she saved was a baby who was conceived in hiding. Now a major motion picture starring Sophie Nélisse, is one of the most remarkable, true stories of courage to come out of the Holocaust.