Engineer "Zarin", the influential and creative member of Pars Electric Company finds out about currency smugglers in some exporting activities of the company and opposes them severely. He decides to resist them with the help of his colleagues. But the smugglers who fail to stop them by threatening start violation and murder to prevent Zarin and his friends interfering.
Pari and her friend Mahin, under Jalal's orders, position themselves in the path of Mehdi and his friends to disrupt his marital life. Jalal, who had been Mehdi's worker, ended up in prison after issuing a forged check in Mehdi's name and subsequently being accused by him. After being released from prison, Jalal informs Fereshteh, Mehdi's wife, about her husband's affair with Pari, leading Fereshteh to leave Mehdi's house in anger. Pari becomes interested in Mehdi and, despite having checks and promissory notes from Jalal, refuses to continue her collaboration with him...
1322 Islamic Calendar year; Iran before the constitutional revolution. People have formed a revolutionary committee to fight Khan. Cossack brigades are torturing and executing people, and Sheikh Saleh and his brother Esrafil with the help of an old man named Khajeh Isaa are prepared to fight against Khan and his steward Hollakoo.
Farhad and Taher are two friends and partners who run a cabaret. Farhad becomes acquainted with Nazi during a trip to the north and develops an interest in her. Nazi has a warm voice, and Mahmoud, who is a rival cabaret owner to Farhad and Taher, tries to employ Nazi in his own cabaret. Farhad goes to Europe to hire some singers and loses one of his hands in an accident there. Knowing that Nazi will not accept him, Farhad stays in Europe for a while, hoping to forget Nazi.