Hayat Uzun, a native of Giresun village and daughter of a fisherman is under pressure to secure employment in Istanbul or she will have to return to her family in the countryside. A case of mistaken identity allows her to gain a job at multinational textile company Sarte, headed by Nejat Sarsılmaz, as personal assistant to Nejat's son - Murat’s assistant, Cağla. Originally the job was reserved for Suna Pektas a family friend of Sarsilmaz's. Nejat's eldest son and heir, Murat Sarsılmaz, begins to fall in love with Hayat. This provokes jealousy from Murat ex-girlfriend, Didem, the lead model for the company.

Jealousy causes Murat to push Hayat away, but he pursues her and apologizes, and eventually fires Didem for her plotting. Murat brings Hayat to his home to recover from a panic attack caused by Didem, and they bond, but Didem then arrives claiming to be pregnant. Hayat later learns from her friend Asli that Didem falsified her hospital tests. Murat is distraught but accepts his responsibility to marry Didem. Both the families meet and decide their wedding. Murat’s stepmother Derya, learns the truth and helps Didem to fake a miscarriage, releasing Murat from his presumed responsibility.

Meanwhile, Ibhrahim, Hayat's landlord's nephew enter the plot. Hayat with the help of her friends Ipek and Asli decides to make Murat suffer a bit. She pretends to be in a romantic relationship with Ibrahim which sparks Murat's jealousy. Later on due to a series of events Murat comes to know this pretense. On Sona's (Hayat's) birthday, Murat welcomes Hayat in his life in the same place where he lost his mother. Both begin a very happy relationship. But Hayat is in constant despair due to her false identity. Murat proposes marriage to Hayat but is still unaware of her true identity. Hayat feels sad but is unable to disclose this to him fearing she might lose him. Derya discloses the truth to him and he's heartbroken. Hayat loses her job and her grandfather demands she return for an arranged marriage. Murat tries to stop this and, after overcoming the bad history between their families, marries Hayat. However, Murat realises he still has not forgiven Hayat and is cold towards her.

Murat becomes jealous when Emre, a contractor to Sarte, flirts with Hayat, and the company suffers. Murat and Hayat fall more in love and friction in their relationship increases at the same time.

Murat's first mom returns with nurse Ghazal in a series of events. When his mother is hospitalized from an accident, Murat contemplates Hayat's desire to separate and realizes that he has to fight for her. Murat tries to repair his relationship with Hayat, but she spurns his efforts. Emre sends an unusual message to Hayat convincing her of his love for her. Murat is angry on Hayat and he leaves her saying the marriage is over. But then Murat returns to save Hayat from a fire, saying that he cannot live without her.

Later Ghazal kills Murat's mom in a revengeful act. And after her death