Joe May's sensual drama of life in the Berlin underworld is in many ways the perfect summation of German filmmaking in the silent era: a dazzling visual style, a psychological approach to its characters, and the ability to take a simple and essentially melodramatic story and turn it into something more complex and inherently cinematic.
Following World War I, after a long imprisonment, two German prisoner-of-war soldiers escape from a Siberian lead-mine. Karl manages to reach Germany before Richard, and is sheltered by Anna, wife of Richard. While Richard is still on his homeward trek, Karl and Anna fall in love. And then Richard comes home.