"The Mamba" (Michael Niavarani) is a top international terrorist. A deadly close-combat fighter, sniper, explosives expert, master of mask and deception. Hossein Sarivi (Michael Niavarani), on the other hand, is a good husband and sound designer in a biscuit factory. Both look confusingly similar, but have never met before. While the clumsy and eccentric-naive Sarivi is looking for a new job so his dominant wife Pari (Proschat Madani) does not find out about his termination, he is unfortunately held for "Mamba". Sarivi, who does not know what is happening, is sent by dubious Russian clients on...