Forest of Death(1994)

Original title: Bosque de Muerte

Three young couples go to a cabin in the middle of the woods, their guest has a little secret that she doesn't like talking about. The next day one of the guys goes swimming and disappears, another one goes looking for him and doesn't come back either. One couple goes loooking for the forest ranger but their car breaks down and at the cabin the other two girls are alone, who will be next to die?