? (Question-mark)In a small remote town up in the mountains, the society is shocked by a triple homicide of extreme nature, performed by a 20 year old boy. With the murderer seemingly brainwashed and has no memory of the event, the local police believes a local cult is behind it. Bernard a 60 year old Austrian man working with the police as a medium is put on the case to solve the mystery of the old rotten skull found in the murderers car.
詭宴威爾(羅根‧馬歇爾-格林 Logan Marshall-Green 飾)和伊登(坦米‧布蘭查德 Tammy Blanchard 飾)曾擁有一個幸福的三口之家,但是數年前兒子的意外身亡讓夫妻倆的生活跌落谷底。在此之後,他們選擇分手,各自展開不同的人生。這一日,威爾接到來自伊登的邀請函,邀請他和現任女友基拉(伊梅雅格特伊‧科倫尼伊樂迪 Emayatzy Corinealdi 飾)來夫妻倆曾經有過快樂和悲傷記憶的房子裡參加派對。面色凝重的威爾驅車抵達,見到了新老朋友、伊登及其現任丈夫戴維(米契爾‧哈思曼 Michiel Huisman 飾)。 派對中途,戴維向眾人播放了一個位於墨西哥新興宗教組織的宣傳視頻,隨後引導眾人玩起吐露心中真實所想的遊戲。只不過所謂的遊戲似乎漸漸偏離了方向……