God's Crucible: Their father, Michael Kalmar, imprisoned in Siberia, political refugees Ivan and Irma Kalmar seek freedom in Winnipeg, Canada. Encountering persecution at the hands of prejudiced neighbors, including their father's enemy, Makaroff. Ivan's violin playing both attracts Marjorie Menzies and earns him the enmity of District Attorney Mortimer Staunton, a rival for her affection. At a party at Makaroff's home, Irma is insulted, her abuser is slain and Ivan arrested. Her escapee father confesses to the murder but both men are freed when a family servant who admits to the murder.