Her eight-year-old daughter goes to the pharmacy a few blocks away from her house to buy medicine, but the pharmacist mistakenly gives her a poisonous medicine. After the girl leaves, the pharmacy doctor realizes his mistake, and after many adventures, he finds the house of the sick employee and, at the last moment, saves him from taking a poisonous drug and dying unintentionally. The sequences of the film shot in the Ferdowsi store, although black and white and old, are spectacular and introduce the viewer to the mood of the store and Ferdowsi Street in the 1930s. Although the Ferdowsi chain store did not have a happy ending and did not reach its end, it was an effective and successful experience in a few years.