Resonnances (2006)

Sinopsis: A perfect getaway for a group of friends turns into a nightmare in this amazing French micro-budget horror/sci-fi film! Thomas, Yann, Vincent and three female friends hop into their cars and travel to the French mountains for a relaxing weekend trip. On their way, a dangerous psychopath escapes from prison and there’s even talk of a ghostly female apparition haunting the area. After picking up a suspicious hitchhiker, a thick fog envelops their cars and sends them all over a steep cliff! Barely surviving the fall, they soon discover something even more horrifying. An ancient creature lives under the ground… listening and waiting. It’s ready to devour anyone and anything in its path and this group of friends is very much on tonight’s menu!