I just started watching this, can anyone tell me who

the body belongs to in the opening scene that is tied up and gets a sludgehammer to the head? She is just wearing black panties and a bra. I tried to find out on this site but unfortunately it does not have a cast member listed as "perfect body who gets a hammer to the head" or any variation of such. I'd like to know if she is anything else. What an incredible, sexy, f'ing body. Anyone know??? Maybe it'll be answered at some point in the movie like a flashback or something, or maybe it is the main character and the beginning of the movie is actually what happens to her at the end. I don't know. But, if it is her, she sure hides the perfection underneath those clothes well. Time will tell. I just hope I can get through the movie to hopefully find an answer. The xanax I just took to sleep, and the reviews I just read about how horrible this movie is, may prove to be to tough to finish it. Anyway, if anyone knows who she is, do tell. Thank you.

Mustache