Zeynep works as a teacher at the school of the Beyoğlu family, one of the richest people in the country. Since her sister Berna is studying with a scholarship given by the family, Zeynep feels indebted to them and works voluntarily at the Beyoğlu Foundation. The chain of events triggered by her preventing an assassination on Onur Beyoğlu, the heir to the Beyoğlu family, at a foundation organization, will bring her closer to this charismatic man and lead her to the wedding table. Onur's marriage to Zeynep, who was not interested in any woman after his wife's death, was met with surprise. Onur is impressed by Zeynep's difference from everyone around her and her sincere behavior, but there are big secrets that Zeynep does not know about Onur and her family. Nothing is as it seems in this house, where everyone is connected to each other by the pain of the past. Zeynep and Onur will have to fight for their love in this house that has turned into a golden cage.