Dopo aver aperto l'officina meccanica, mio cognato piange pentito

He is asked by his mother-in-law and brother-in-law to quit his job and help run their factory. He creates millions in profit, but is only given 50,000 as his share. Feeling disappointed, he decides to start his own business with his wife's support. Can he rise again? And can he get back at those who betrayed him?