在野外徒步旅行时,五位好友遭到神秘枪手的都追杀,陷入一场绝命逃亡之战。A boyfriend, who can barely speak English, embarks on an overseas trip with his girlfriend, who takes charge of planning everything and even handles communication on his behalf. However, their journey turns into a nightmare when they barely make it to their accommodation, and strange knocking sounds start emanating from the room. To make matters worse, the girlfriend disappears...。