alright..so i remember one couple..helping out another couple in a cabin or something, could've been a house. then they turn against them. they're up in the mountains and its snowing. at one point, the lady is trying to get away and she grabs onto something really cold and her hand gets stuck and guy pulls her hand off and it starts bleeding. then later, the couples were gonna have a race with snow mobiles, and the guy messes one of them up, in hopes of injuring the woman. thats all i got for now. cant remember anything else. haha. any idea which movie i'm talking about?