Movie Question about a highway or something?

one guy and two girls go on a trip to see a crater in the middle o f nowhere. they enter a bar where a customer makes a sexual comment and the guy gets angry, the 3 leave and go to crater, they return to there car and it won't start. a tow truck driver offers to help. and gives them spiked water to knock them out . he ties them up and tortures 1 girl ,the other is tied up in shed, the guy is in a cave tied and nailed in front of starved dogs. 1 girl in the shed unties herself and finds tow driver and the girl in the barn where he is torturing her friend she shoots the mandand looks in the barn where there are 20 cars I.D's and movie cameras of families the man has killed . the 2 girls escape but can't find their friend, the girls are killed and the man escapes. and finds help ,but when the police look for the area ,where they were held , it cannot be found

does anyone know the title of this movie 10 points for correct answer.

Wolf Creek

wolf creek http://www.surfthechannel.com/info/Movie...