Kalender Pide is about the events that happen to two men who accidentally enter each other's lives. Kalender, who runs the restaurant he inherited from his father, has not been doing very well lately. In the meantime, Kalender learns that his restaurant is being put up for sale by its owner. Kalender, together with Öcü, who unexpectedly enters his life, tries various ways to prevent the sale of the restaurant.
The story of two contrasting characters, Orhan and Ali, whose paths cross in some way. Orhan is quite bold and fearless. He is a well-respected figure in the underground world who never leaves his money behind in the market and engages in loan sharking with the men he has gathered around him. In Orhan's life, women come and go. Ali, who has chosen a white-collar, straightforward life for himself, is quite shy and one day, while buying a ring for the woman he wants to marry, he finds himself in the middle of a robbery. When all kinds of troubles come upon him, he takes refuge in his brother, who engages in loan sharking in the underground world.