Rachel, who is actually called something else, speaks several languages fluently and is at home everywhere and nowhere. Perfect qualifications for an agent, according to the Israeli foreign intelligence service Mossad that recruits her. Her liaison officer Thomas holds her in high esteem; operational command in Israel is also convinced and so Rachel is sent to Tehran on an undercover mission. Fascinated by this foreign country, she carefully blends in with everyday life on the ground and starts an affair with a businessman, Farhad, the man she has been instructed to spy on. But her missions become more and more demanding and dangerous until she finally decides to quit. She leaves a cryptic message for Thomas, who must now find her before she can become a threat to Israel.