As the weekend approaches, Richard Wayard (Stephen Moyer Stephen Moyer), a slightly exhausted middle-aged man, drives his submissive wife Cynthia (Mia Kirchner Mia Kirshner), rebellious daughter Sadie (Ellie MacDonald Allie MacDonald) and lost puppy son Danny (Peter DaCunha) to a forest camping holiday in a New Jersey national park. Although there was a minor accident on the way, it was not long before they forgot their unhappiness. But the jungle has already gathered a group of noisy tourists, night fell, vulgar and unreasonable young people even told the local legend of Jersey demons for a long time. With this night as a watershed, Richard was harassed by all kinds of inexplicable visions and mysterious creatures, and the holiday, which was supposed to relax, became the most difficult nightmare to look back on.