What is the name of the movie?

hi. please hep me

This film is a product of 2007 or 2008.

And his story is that …
At the beginning of the film, the hunters kill the sister of one of the main characters of the film and throw her body into the river.
A few friends go to a village-like place for fun and are hunted by several killers. ”
And those killers are under the command of an old woman and her son.
The killers in this movie are similar to the killers in the wrong trun movie series.