Eight friends, all in a stable relationship, decide to venture into a game of sexual discovery by exchanging couples while trying to free themselves from their daily routine and add a spicy touch to their love life....
路易丝（麦肯兹·戴维斯 Mackenzie Davis 饰）一家人受邀前往与世隔绝的乡间小屋度假，却在各种诡异细节中发现了惊悚秘密——沉默不语的男孩（丹·休格 Dan Hough 饰）、心怀鬼胎的夫妻（詹姆斯·麦卡沃伊 James McAvoy、艾斯琳·弗兰乔茜 Aisling Franciosi 饰）……温馨出游惨变惊骇噩梦，杀机暗藏，步步紧逼，深陷迷局，如何自救？...
