A journalist descends into the dark underbelly of the Iranian holy city of Mashhad as she investigates the serial killings of sex workers by the so called "Spider Killer", who believes he is cleansing the streets of sinners.

After an ambush, Afghan interpreter Ahmed goes to Herculean lengths to save US Army Sergeant John Kinley's life. When Kinley learns that Ahmed and his family were not given safe passage to America as promised, he must return to the war zone and repay his debt.

Khosrow and Morteza set out on a mission to kill someone. The assassination ought to be arranged as a suicide. At the last minute however, they are obliged to change their initial plans…