The Wolf's Trail (1993)

Reza and Sadegh-Khan are old friends who are engaged in shady deeds. The next day after his wedding, Reza is arrested hauling the dead body of one of his friends. He is sentenced to jail. Years later, freed from the prison, he is now settled in a little town. A letter arrives from Sadegh to invite him back to the capital city in order to attend his son's wedding. In the letter, he also asked Reza to do him a favour. But in Tehran, Reza finds out this is just a trap set for his elimination as the only witness of Sadegh's dark past......