Bihter Yöreoğlu blames her mother Firdevs for her father's death because her father had a heart attack when he found out that his wife was cheating on him. Firdevs Hanım wants to marry the rich businessman Adnan Ziyagil in order to find financial relief. Bihter, despite knowing her mother's interest in her, gets close to Adnan and makes him fall in love with her. Adnan and Bihter get married. Adnan's nephew Behlül also lives in his house. Adnan's daughter Nihal is an introverted young woman and has been in love with Behlül for years, but Behlül sees him as her sister. Bihter and Behlül fall in love with each other over time, but at first they don't accept it and try to stay away from each other. Behlül gets engaged to his girlfriend Elif for this, but this doesn't work. Firdevs Hanım is the first person to notice their relationship and tries to direct Behlül's attention to Nihal in order to protect her daughter's marriage.