Cheng Keke, a 28-year-old psychological counselor, is hired as the personal therapist to Pei Jiang, heir to the wealthy Pei family, after helping him in an emergency. On the surface, she is there to treat Pei Jiang's insomnia. In reality, Pei Jiang has set a trap to investigate the family's "White Rose." Every generation of the Pei family has suffered an "accidental death," and each scene has featured a bloodstained white rose. After moving into the Pei family manor, Cheng Keke discovers a series of eerie phenomena: piano music that plays on its own at midnight, a woman's figure flashing in the mirror, and white roses in the garden that never wither. The Pei brothers, Jiang and Xi, have harbored unusual feelings for each other since childhood, but have always kept their distance in public for the sake of the family's interests. Taking this opportunity, they gradually cross the line as they investigate, testing each other until they finally acknowledge their feelings. Together, the brothers uncover the truth behind a family curse spanning three generations and discover that every death points to a forgotten "Rose Pact."
