父亲离世后，藤井佳奈返乡照顾状态反常的母亲，想要挽回曾经缺失的亲情。但身边接连发生诡异灾祸，预感一一成真，佳奈惊恐发现，母亲早已异变为别的存在，留存下来的爱化作致命诅咒，厄运正朝着家族亲友不断扩散。
First-time feature director and award-winning comedian Simon Glassman comes to Fantasia with the cosmic horror, BUFFET INFINITY! Picking from hundreds of hours of original, low-budget TV ads, Glassman tells the sinister tale of two restaurants battling it out in the town of Westridge County. Insurance ads, used car rivals, and plugs for a local religious scholar and recording artist, Langdon P. Hershey, all converge to tell the story of an expanding sinkhole, a cult, and an ever-growing restaurant that becomes unsettlingly sentient.
