Serhat Tecer lives a happy life with his wife and daughters—until an unexpected truth turns his world upside down. The great love of his life, his wife Berrak, has been hiding a shocking secret for years: she has another child… Kader. As Serhat begins to unravel the truth, his path crosses with Zeynep—a brave and outspoken woman who becomes his greatest ally when he least expects it. Following every clue step by step, Serhat soon realizes that the key to Berrak’s mysterious, secret-laden past will emerge from the last place he could have imagined.

Zeynep teams up with Serhat's brother, Cihan Tecer, to find a clue. Meanwhile, Serhat, unaware of all this, is following his own trail. When he sees the white lily left by Berrak's bedside, he thinks he's getting close to the person he's been searching for. A little later, he learns who left the flower. What he feels is not only anger but also immense pain. Zeynep, eager for news from Cihan, discovers where Serhat has gone, but by the time she finds out, it's too late.

After confronting his brother Can, Serhat tries to uncover the truth about the past by reading the letters Berrak left behind. During this process, the only contact saved on Berrak’s phone is also revealed. As Zeynep and Serhat follow the trail Berrak left behind, they remain unaware of the evil scheme being plotted by Tülay and Erkan, or of the explosive secret that Ebru is about to unleash upon the Tecer family.