In a high-fashion house in Rome, tensions rise as models prepare for a big upcoming show. The glamorous setting is disrupted when one of the models, Isabella, is brutally murdered. Inspector Sylvester arrives to investigate the crime, revealing the dark and secretive lives of both the models and the fashion house's owners. Amidst a backdrop of jealousy and desire, the inspector discovers Isabella had a diary containing incriminating information that could ruin many people. As he delves deeper, suspicion falls on various characters, including Max Marian, the co-manager of the house, and Cristina Como, another manager with secrets of her own.

Soon after, more models are targeted by a mysterious gloved killer who seems to be driven by a desire to retrieve the diary at any cost. The atmosphere becomes more fraught with dread as the staff realizes they are being hunted by a merciless assailant. Each murder brings new clues and red herrings, complicating the investigation. Personal insecurities and professional rivalries come to light, adding layers to a web of deceit and danger. As tensions within the fashion house reach a boiling point, the inspector races against time to uncover the murderer's identity before more lives are claimed. The story evolves into a tense, psychological thriller leaving everyone guessing until the very end.