A-Seyd Kazem, the guardian of the neighborhood, is the lover of his sister-in-law, Zinat. He rejects Zinat's suitors, including Teymour, until Davoud, the son of his old friend Jalal, comes to Tehran from Shiraz and becomes interested in Zinat.
A young doctor enters a village to serve there but the traditional doctor Mozaffar Khan Hakim-bashi didn't like that and thinks him a rival. Mozaffar Khan and his assistant begin to plot against the doctor making people to doubt him. Meanwhile Hakim-bashi's daughter falls in love with the young...
