After being discharged from the military service, four friends decide to establish a boarding house in Tehran, and each of them undertakes a task: one is a waiter, another is a cook, the third is a doorman, and the last one is elected as the director of the boarding house.

Amir, Naser and Mansour try hard to obtain ten thousand Tomans in order to release Narges's father from prison. At the same time, a runaway thief throws a bag full of money into their house. After a while, the landlord forces them out and Narges keeps their furniture which includes the bag too. The thief's teammates are searching for the bag but they fail to find it, and finally police arrives and...