Shot in İstanbul, Leylifer tells the story of Meryem, a young Colombian girl living in Spain. Her life takes a turn when she and her Turkish husband, Kemal, travel to Istanbul for a few days to attend her sister-in-law's wedding. However, Kemal suddenly disappears without a word to anybody. The wedding is postponed, and Kemal is later found dead in a burned car with a woman. Believing Kemal was murdered, Meryem swears never to return to Spain until she finds the killer. Alone in Istanbul, among the people who once rejected her for being a foreigner, she meets Aziz, the famous designer of the Leylifer ring she wears on her hand. It is the work of destiny. Their paths cross, and they will live an unexpected love.