Bridge (1971)

Jalal who is a locomotive driver meets a girl Shirin in a village and falls in love with her. They decide to get marry but in the way back he has an accident. He get injured very badly but they tell Shirin that he has been killed in the accident. Little by little he gets better but hears that Shirin is dead. After some years he returns to the village and meets a little boy to find out that this is his own son.