I rented this one based on a Netflix recommendation I think.
A couple with their marriage in trouble sees a therapist who tells them to visit a couples retreat that has had great success. The couple goes and things get weird. This movie is hard to describe without giving too much away. Suffice it to say it's a bit Twilight Zone-y.
I liked it. Give it a shot.
http://www.imdb.com/title/tt2756032/?ref_=fn_al_tt_1
