Silent Collapse tells the tragic story of 22-year-old Su Hanlu, who gradually descends into mental breakdown under the combined weight of abuse from her family of origin, a lover’s betrayal, and the double blow of being hurt by her best friend. By the time she meets Zheng Yuannan, the only therapist who understands her, the rot inside her has already reached her bones. Diagnosed with severe depression and borderline personality disorder, she eventually leaps from a rooftop, leaving behind only a suicide note and a candy shop named after her: the sweetness she never got to taste, and the last trace of warmth from a shattered life.