卡斯蒂略一家在调查淘气精灵案的过程中，发现自己卷入了一场病毒噩梦，这场噩梦让他们与一个拥有强大力量、决心摧毁圣诞节的孩子对抗。

Nine young friends get lost on their way to spending April Fools Day together. Instead of letting the entire trip go to waste, they decide to go party at an old abandoned inn called 12 Hills. Rumor has it that the place has curse that comes to life every April 1st. Despite the warnings from the locals, the friends decide to go ahead with their April Fools Day plan. It's all partying, sex and alcohol until victims of sick, deadly jokes start to appear.