Shy and looking for love, Mark quickly becomes smitten with the outgoing and mysterious Ash. But as his feelings for her intensify, so does his unexpected submersion into Ash's biggest love: the wild world of mukbanging. And with it, lots of bloodshed.

At the breaking point of their dysfunctional marriage, Cass and Gav take a trip through Serbia. After meeting a mysterious local, Saint Peter, who eagerly offers to be their guide, the couple embarks on an impromptu sightseeing expedition that soon takes a series of sinister turns.