Welcome to Basenotes, dogsinatub! There are so many great "180" scents out there that I don't know where to begin. At the moment no "dark and mysterious" scents come to mind, but that may be because I don't typically gravitate toward those sort of scents. Some that may fit the bill: Robert Piguet's Bandit, Chanel Coromandel, Serge Lutens Iris Silver Mist, and Guerlain Mitsouko. I have never sniffed Tom Ford Black Orchid, but the name certainly sounds dark and mysterious! If you don't have access to a wide range of scents where you live, you may want to try ordering some perfume samples from Lucky Scent or The Perfumed Court. Both sites offer descriptions of and notes for the scents they carry. Good luck!