Fyodore Otsep (Russia), also credited as Fjodor Ozep (Germany), Fedor Ozep (Canada) and Fédor Ozep (France) is probably best known as co-writer of sci-fi epic Aelita (1924) and director of Soviet classic Miss Mend (1926). His work in Europe and America is harder to see, and the whole lot is rarely grouped together for consideration as a whole, the curse of itinerant filmmakers like Dassin, Siodmak, even Ophüls.
To decide whether this is merely a quirk of film history, or a full-on case of major artistic neglect, simply watch this clip:
Amok (1934) is the third of Ozep's Pathé-Natan films, and the most baroque. It's based on a story by Stefan Zweig (Letter from an Unknown Woman) later filmed in Mexico with less fidelity but plenty of gusto. It's a very weird orientalist fever dream.