This movie is awful. Its plot is well-worn (think - women in isolated cabin with storm approaching...), homophobic and misogynistic. This movie is for adolescent boys, not lesbians, and involves numerous breast shots, and cracks at lesbians wanting to be like men. It portrays queers as evil, ruthless and sick. Oh yes, and a woman getting violently beaten by a baseball bat and then a golf club. I had thought this 'theme' went out in the 30s, but it keeps creeping back.
If you're hoping for a great thriller filled with twists and turns, give up. If you've seen 3 or 4 thrillers in your life, the twists are so obvious as to be pointless.