Chatfah, the youngest and most beloved sister in the Bupphachinda family, has just received a significant portion of her father's inheritance and is preparing for her upcoming nuptials. However, her life takes an unexpected turn when she falls from the highest floor of their vacation home, leaving behind only a stunned gaze from her three older sisters—Baibua, Chomphu, and Picha. As Chatfah's body mysteriously vanishes without a trace, suspicion naturally falls upon the three remaining sisters who are left grappling with grief and confusion. The eldest sister, Baibua, is known for her composed demeanor and wisdom. She has always put the needs of her family above her own desires, sacrificing time and resources to ensure their well-being. Chomphu, on the other hand, exudes confidence as a successful model, having recently engaged to Chatfah's former boyfriend whom she had outmaneuvered for his affection. Lastly, Picha is a talented jewelry designer who has shared a deep bond with her younger sister, often turning to each other for emotional support during their upbringing. As the family struggles to come to terms with Chatfah's sudden disappearance, they are thrust into a web of suspicion and distrust. The tragedy that befalls them does not end there; as if fate were orchestrating a cruel symphony, more unforeseen events threaten to tear the sisters apart at their emotional seams. In this tumultuous time, the three sisters find themselves at a crossroads. To uncover the truth behind Chatfah's vanishing act and bring justice to their family, they must confront their own pasts and learn to rely on each other once again. They decide to move back into their childhood mansion, a place that holds cherished memories but now serves as a sanctuary for them to delve deep into their hearts and minds in search of answers. As they navigate through layers of secrets and hidden motives, the sisters must question everything they thought they knew about each other. Could one of them be responsible for Chatfah's disappearance? Or is it possible that someone from outside the family has orchestrated this tragedy to sow chaos among them? The journey ahead will test their strength, resilience, and most importantly, their ability to trust in each other again. For only by uniting as sisters can they hope to uncover the truth behind Chatfah's mysterious vanishing act.