A celebrated motion-picture actress receives an ominous anonymous letter sealed with black wax and a grinning death's head, threatening that her beauty will be destroyed within thirty days. The narrative follows her mounting alarm and the disruption of her daily life and career as the menace spreads anxiety among those around her. Tension grows as suspicion, precaution, and attempts to learn the sender's identity shape the unfolding events, blending elements of suspense, personal vulnerability, and the collision between public success and private danger.