Lucien, the renowned sleuth, becomes fascinated by a disconcerting and atypical homicide, only to confront an appalling inferno at the site of the crime. Despite being the last to appear, Scarlet Atissian, the property manager who became privy to the killing, piques the detective's interest. To unearth the facts of the matter, Lucien needs to convince the enigmatic woman to assist in his inquiry. Unbeknownst to him, Scarlet harbors a multitude of horrifying secrets.