Orhan Koparan and his brother Naylon make their living by maintaining the graves of the deceased in the company they have named Koparan Brothers. Wanting to grow their business, the brothers decide to bid for a shroud tender at the municipality one day. However, they are unaware that the winner of the tender has already been decided beforehand. During the bidding process, the Koparan brothers cause a series of incidents, making enemies in the process, and find themselves caught up in various tragicomic events.

Dr. Doğan and Chief Physician Halil, who work at a mental hospital, are applying an interesting treatment method on patients. Only the nurses in the hospital know about this method besides the two of them. Serkan, who has recently started working as a doctor, begins to suspect what is happening in the hospital. Meanwhile, Chief Physician Halil plans to lure Deniz, whom he met by chance, into his web and prepare her fate in the same way he did with the others. Will the truth come to light, and will the culprits face their punishment?

A murderer, organ mafia, and a cat and mouse game surrounded by refugees from their lives on the road to freedom. Will the good and the bad lose in the Longest Night seeking answers to the question of law or justice? In the director's chair, the cast of "Longest Night", in which Orhan Kılıç sits, includes names such as Eda Erol, Cem Kılıç, Murat Aydın, Gamze Dar, Mustafa Yılmaz, Ece Müderrisoğlu, Ayça Denker, and Umut Özkan.

The film tells the story of Metin, who asks his friend for help in breaking a spell that has been cast on him.