A mysterious lipstick appears on dressing tables across the city; its users become extremely beautiful but gradually go crazy; the protagonist Yan Yue discovers the same lipstick hidden in her grandmother's belongings; she begins to investigate the source of the lipstick and discovers that her grandmother was a lipstick maker; the lipstick contains an ancient curse and can absorb the soul of the user; Yan Yue conflicts with her best friend, who disappears after using the lipstick; follow Following clues into the underground laboratory, it was discovered that the mastermind behind the scenes was her sister who disappeared when she was a child; her sister made lipstick in order to resurrect her mother who died of illness, but the method was evil; Yan Yue was in a dilemma in front of the truth about her mother; she teamed up with the police and reporters to try to break the curse; she finally found a way to remove it, and her sister sacrificed herself; but the last lipstick was still quietly circulating, suggesting that the cycle is not over.
