Contracted

Actually couldn't say it better myself than someone I follow on Letterbox'd, so please read her excellent and spot on review:
letterboxd.com/holliehorror/film/contracted/

The deterioration of the main character's mind and body were enjoyable enough to get my body horror kicks, but I sadly remember liking this movie a lot more than I actually do.

IMDb and Wiki pages:

www.imdb.com/title/tt2281159/?ref_=nv_sr_1?ref_=nv_sr_1

en.wikipedia.org/wiki/Contracted_(film)

Brooke liked this review