Hollywood, 1923. When aspiring actress Prudence Callahan is targeted by a supernatural cult, her tough-as-nails sister Isadora and brawler Lucky McGann crash through the city's glamor and grime to get her back--straight into a nightmare of cults, creatures, and occult cinema. From haunted mansions to hidden desert tombs, the trio battles monsters, madmen, and movie moguls determined to unleash an Elder God on Tinseltown.