Iranian secret agent Daoud Moslemi arrives in New York City with a mission to assassinate the presumed enemy of his country’s new republic. At a cockroach-infested apartment, Daoud meets his contact, Ghaffar, who explains that Daoud must see “His Eminence” for specific orders. Alone in the apartment, Daoud prays to Allah, listens to a radio broadcast of Iranian leader, Ayatollah Khomeini, and watches television news to learn of a recent assassination. Mistaking the assignment for his own, Daoud wonders why he was replaced by another killer. Just then, Ghaffar telephones Daoud, promising to explain the discrepancy at a meeting the following day. There, Daoud is introduced to His Eminence, who reports the young man has been reallocated to a more dangerous target, a colonel from the deposed Shah’s secret police, SAVAK. Daoud hesitates, claiming he must verify the orders with “the Organization,” and His Eminence promises a telephone call from their leaders that evening. Upon receiving confirmation, Daoud follows his target to a subway station. Due to his fundamentalist beliefs, Daoud desires the honor of killing the colonel, himself, so he saves the man from a mugging. In the ensuing fight, Daoud drops his copy of the Koran, and the colonel notices it is written in Farsi. Realizing his rescuer is a fellow Iranian, the colonel is convinced the young man was sent by God and insists on repaying the favor with dinner the following evening. When Daoud arrives at the colonel’s home to kill him, he is taken aback by his target’s young, bicultural children, Farzaneh and Maziar, whose mother is held hostage in Iran. Daoud is invited to join the family at Coney Island the next day and prepares to murder the colonel on their journey, but is distracted by the man’s attractive sister-in-law, Maliheh, who invites the would-be assassin to dinner on Wednesday. After the Coney Island trip, the colonel leaves his children at their boarding school, explaining he is keeping the youths at a distance because he fears assassination, and he does not want them to witness his death. Unaware that Daoud intends to kill him, the colonel claims SAVAK became insidious only after he left the organization. Daoud asks him to identify clergy members who betrayed the current government, but the colonel refrains and promises that his recent book, an exposé of SAVAK, will reveal corruption on both sides of the revolution. As Daoud tracks the colonel Wednesday afternoon, he is shocked to see him drive to His Eminence’s home. Believing the colonel is a hypocrite, Daoud becomes intent on carrying out his mission. When he later confronts the colonel, the man explains His Eminence is holding his wife hostage to prevent the publication of his book. The text reveals that the leader betrayed his own government. At dinner with Maliheh, Daoud expresses disdain for all art forms, including the young woman’s accomplished piano playing, because it represents the sin of indulgence in an impoverished world. As the two continue their debate about the new Iranian republic, Daoud insists he must kill or be killed for his ideals, but Maliheh criticizes his fundamentalism, claiming murder is never heroic. Daoud storms away in anger as the colonel follows, appealing for mutual understanding. When Daoud aims his gun at the colonel, an elderly couple witnesses the exchange and the colonel insists Daoud is a friend. Daoud grudgingly accepts a ride home from the colonel. The next day, Ghaffar arrives at the apartment and Daoud expresses objection to his new assignment. He was convinced his initial target was a threat to thousands of Iranians, but he has yet to see proof of the colonel’s wrongdoings. Just then, Maliheh unexpectedly arrives outside to apologize for their confrontation and Daoud goes down to meet her. Although she knows Daoud held the colonel at gunpoint the previous evening, she is still ignorant of his true mission. She reflects that Daoud’s ability to refrain from violence in the heat of passion proves he is good at heart, and invites him to dinner that evening. Meanwhile, Ghaffar peers out the apartment window and sees the colonel, who drove his sister-in-law to Daoud’s home. Back inside, Daoud assuages Ghaffar’s suspicion by explaining his strategy to entice his target, thereby making it easier to pull off the killing. However, he refuses to go through with the mission unless he is convinced of the colonel’s guilt. Ghaffar warns Daoud that His Eminence will retaliate if the mission fails. That night, Daoud flushes bullets down the toilet, throws away his gun, and hails a taxicab for the airport. Meanwhile, the colonel and Maliheh wait for their friend, watching a slideshow of their homeland in days past. Just then, police headquarters telephones Maliheh, reporting that Daoud is in the hospital. They arrive to find Daoud dead and identify his body. Upon learning his friend was killed in a beating, the colonel realizes Daoud was his intended assassin. Maliheh encourages her brother-in-law to disappear with a new identity, but he refuses to leave his children. The colonel hopes His Eminence will release his wife upon his death, and orders Maliheh to return the youths to their mother in Iran if he is killed. Sometime later, a new assassin arrives at Daoud’s cockroach-infested apartment to resume his mission.