It is based on Ernest Hemingway's 1937 novel To Have and Have Not, but it moves the setting from Cuba to the south of Iran and the shores of the Persian Gulf.

In his village, due to its hot climate and hard living conditions, dangerous criminals are sent into exile.

At the beginning of the journey the criminals kill the middleman, in the middle of the trip they attack Khorshid and his crewman.

[1] Apart from the shift of location from Cuba to Iran, the main difference lies in the fact that the female character is overshadowed in Taghvai's adaptation and has a smaller role.

Harry Morgan is first pictured as a cold-blooded murderer but later we find out that he is a good man, Khorshid has our sympathy from the beginning.