Randıman tells the story of a young woman who travels to Ordu to prepare a presentation. Filiz, a young woman, works at an advertising company owned by a man named Ferhat. Ferhat, who is trying to keep his clients, asks Filiz to prepare a good presentation about chocolate. The young woman decides to start her research in Ordu, the land of hazelnuts and the place where she spent her childhood. While in Ordu, Filiz is overwhelmed with research, but Eşref, whom she spent time with as a child, and his family are very helpful to her during this process. However, mysterious events in the village hinder Filiz's work. When her colleagues from Istanbul also come to the village, Filiz finds herself caught up in a series of intriguing events.