Dao Puen Din

Kongpop, the owner of a major construction company, is married to Nuanlaor and they have a daughter, Ueamdao, who has just graduated as an engineer. She takes charge of supervising the construction of a hotel in Chanthaburi. Working alongside her is Aran, or Arm, her boyfriend and the son of Minister Suthin and Khunying Ruedee, who serves as the project’s architect.
Tatchapong, the son of Kongpop’s friend Winai, secretly loves Ueamdao. When he learns that she is dating Arm, he is heartbroken and leaves to study in the United States. Meanwhile, Patchara, Kongpop’s loyal worker, accidentally kills a creditor. Before fleeing, he entrusts his wife, Bongkotket, and daughter, Rinlada, to Kongpop’s care. Kongpop agrees out of gratitude, as Patchara once saved his life.
Ambitious and manipulative, Bongkotket and Rinlada scheme to rise in status. Bongkotket eventually becomes romantically involved with Kongpop and even provides information to the police that leads to Patchara’s arrest, resulting in his long imprisonment. Ueamdao and Nuanlaor are devastated by this betrayal, but their friends—Mukda, Janine, and Weerathep—support them.
Ueamdao tries to warn Arm about Bongkotket and Rinlada’s true nature, but he refuses to believe her, especially after Rinlada claims that Kongpop assaulted her mother. This causes conflict between Ueamdao and Arm, worsened by Rinlada’s manipulation. At the same time, Rattasat, a young engineer who has long admired Ueamdao, grows closer to her, making Arm jealous. Their relationship deteriorates further, and when Arm is sent to the U.S. for work, they separate without reconciling.
Rinlada follows Arm to the U.S., attempting to win his affection, but he remains indifferent. Enraged, she lies to Ueamdao, claiming she is now in a relationship with Arm. Heartbroken, Ueamdao agrees to marry Rattasat, hoping to start anew and forget Arm. Meanwhile, Arm, misled into believing Ueamdao has moved on, becomes cold and distant.
As events unfold, Rinlada continues manipulating those around her, even seducing Rattasat and causing his engagement to collapse. Tatchapong, burdened by guilt over his past involvement with Rinlada, eventually reveals the truth to Arm. Realizing everything, Arm reconciles with Ueamdao, but their happiness is short-lived as more conflicts arise.
Patchara is eventually released from prison and seeks revenge. In a violent confrontation, he shoots Kongpop, leaving him paralyzed, and later kills Bongkotket. As the truth begins to surface, Rinlada continues to deceive others, framing Ueamdao’s family. Ueamdao, driven by grief and rage over her father’s death, vows revenge against Rinlada.
The situation spirals further into violence, betrayal, and tragedy. Rinlada’s schemes ultimately lead to her downfall, as even her allies turn against her. Meanwhile, Ueamdao nearly loses herself to hatred, pushing away those who care about her, including Arm.
In the end, after the truth is revealed and the cycle of revenge reaches its breaking point, Ueamdao is reminded of her true self and the value of goodness. With encouragement from those around her, she chooses to let go of her anger. Arm returns to reconcile with her, and the two decide to start over, leaving behind the pain and darkness of the past to build a new life together.