Watch Bach - Ein Weihnachtswunder for Free: How to Stream the Movie Online at 123Movies. . Leipzig, in December 1734: Christmas brings the Bach family together. The first snow has fallen and the children are happy about the arrival of their older half-brothers. Meanwhile, Anna Magdalena supports her husband Johann Sebastian Bach. The cantor believes in his mission to bring the divine closer to people with his music. But to achieve this, the “Christmas Oratorio” must be finished on time.