...und es lockt ein Ruf aus sündiger Welt (1925)

Irena, the rich only child, the daughter of the factory owner, is bored with her faithful but aged adore Harriman. Her attention is drawn to engineer Werner, a worker at her father's factory. Irena bets her father that Werner will fall in love with her. From now on, he does everything to make it happen. After many trials and adventures, he achieves his goal.