Despite the title, this isn't a horror film at all; the werewolf elements are only introduced three-quarters of the way in  which are, in any case, merely suggested through the lead character's hallucinations  but these obviously constitute the film's highlight (though rugged, pasty-faced star and co-director Chesebro isn't exactly Lon Chaney Jr.); still, the transformation-by-transfusion is an interesting concept, one which I don't think has been done in subsequent films. However, while the forest locations are certainly nice, the unexciting main narrative involving rival logging companies and the unavoidable love triangle really drown the interest; a subplot involves a villainous moonshiner who's a dead ringer for Walter Brennan  and, for the record, there's even an interminable "Jazz Age" party sequence towards the beginning! The soundtrack accompanying the print I watched features a classical piece which was also used  to much greater effect  in Luis Bunuel's L'AGE D'OR (1930).