While passing the Iranian borders illegally 6 persons are captured by a terrorist group Af'i. The boss of the group is Baktash and they have rivals who are fight them. Meanwhile one of the 6 captured is Shahin who is a secret agent of the Iranian government.

Mona, a student girl, is murdered. Her fiancé, Iman, is accused, but after repeated interrogations, the charges are dropped. Until another girl from Iman's class is murdered and...