一群青少年驾车离开小镇，经过 Make-Out Hill 上的一座古老墓地。在那里，他们注意到黑色的周围漂浮着两道神秘的蓝光。当孩子们调查时，他们发现地下生活着恶魔生物，这些生物注定要让一位古老的恶魔之神复活。

After committing a series of multiple murders, a neurologist visits an incarcerated killer, living in exile. She studies him and his brain and discovers the horror that lurks behind his violent impulses.