黑暗降临，星辰隐去，唯有心灯，点亮孤独。性色在线

　　Jess and Andrea are hiking in the Scottish Highlands. But their adventure holiday turns sinister when Andrea disappears after a chance encounter with two men at a pub – leaving Jess to search for her friend in a place she doesn’t know and where the locals are less than helpful. Is there something sinister at work in the peaceful countryside?