A couple of friends on their way to a rock festival pick up two hitchhiking girls going to the same event, but their trip is ruined due to an unexpected car breakdown. Now, this group of travelers find themselves in the creepy and dilapidated shanty town of Sant Martí, and all hell is about to break loose.

A family prepares to spend a day in the countryside. Father, mother, son, daughter, and baby are the members of this upper-middle-class, conservative, and traditional family who are about to embark on this journey to an unexpected destination.