When 10-year-old Nemo's mother suddenly dies, the boy is forced to go live with his maternal uncle's family. They are cordial and treat him well, but his 12-year-old cousin, Iván, begins to tease and tell him stories about the Bogeyman and how he'll come and get him if he doesn't behave. At first young Nemo doesn't believe the stories, insisting that Iván is just making things up...
The story is about a couple that sets out for a dinner party on the millennium eve. The woman is pregnant, the guy has no money and no car and has borrowed one from a friend of his. The car of course is not exactly top class and crashes down after few miles. And that's where the film really starts. The couple start fighting and trying to find a way to the parents' house before midnight, hitchhiking on the way and getting into several cars and get themselves involved in the funniest situations.
Javi and his friend Carlos visit an old house on the outskirts of a small Spanish village. According to his brother Juan this is a haunted house and one can hear the voices of the dead. Later he is intrigued with a room which is always closed (the room where his father was found dead). He is so interested in these mysteries that he starts to investigate all the secrets of these dead people and their stories.