Ghahreman is a young mechanic who works at Mr. Dolatmand's factory. He meets Khatereh, Mr. Dolatmand's daughter, and gradually they fall in love with each other. Ghahreman's friend also becomes interested in Mitra, Khatereh's cousin. Dolatmand opposes this union and decides to marry his daughter off to Engineer Jimmy, who has a foreign fiancée named Sheri...