The Blogger is right, there is a gay subtext.
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If you've ever seen the film "The Celluloid Closet", the documentary that chronicles the dipiction of gays and lesbians throughout the history of film, it demonstrates how until very recently, all gay images in film were extremely negative. These films would include those with openly gay characters from films such as such as "Cruising" or "The General", both with terribly negative images of gays,and also those films where the homosexual characters are not always shown as explicitly gay, rather their "gayness", if you will, is merely "suggested". This film is a great example of the latter.
The "suggestion" of homosexuality is present in the characters of the two doctors who experiment and cause the "werewofery" of the central character. The two male doctors are presented as "a couple" with one being masculine and dominant and the other being quite effeminant and submissive.
Together this gay (sic) couple attack and destroy what is presented as the healthy, loving, "normal", heterosexual family by experimenting on the father of that family, namely Duncan.
If you've missed this not so subtle gay subtext involving the doctors, I recommend you take a look at "The Celluloid Closet", then view "The Werewolf" again.
Steven Ritch who wrote and stars as the werewolf has either deliberately or unconsciously, created what is obviously a gay subtext in the characters of the doctors, who as usual by the way, meet a ghastly end, thus "punishing" the big, bad, homosexuals once more. Watch "The Werewolf" again, the Blogger is quite right,- its' there