The White Devil.

A Lost Persian Film. Iraj meets Jasem, the manager of a cafe, in a fight. Iraj is an addict and the man who brought him drugs has been arrested. He provides for his needs, and Iraj is arrested by a detective. In Iraj's absence, Jasem provides for his mother and sister's financial needs. After Iraj is released from prison, he steals his mother's necklace to obtain drugs. Iraj catches his partner Jasem in the act, and the detective, who has arrested one of Jasem's men and forced him to cooperate, keeps an eye on them. Jasem and his men are suspicious of Iraj, but he shows his loyalty by cooperating with them every time. Eventually, the police succeed in trapping Jasem and his men.