Max has just graduated from school and is preparing to attend Cambridge University. His family is proud of his accomplishment and throws him a graduation party. After the party, Max is left to clean up alone. That night, he has friends over who trash the house. The next day, Max frantically cleans before his parents return. However, he discovers a mysterious black stain on the wall that shocks him when he touches it. Unsure of what to do, Max paints around the stain to make it larger, then crawls through it and disappears. When his father later discovers the stain, he paints over it, unaware of what has happened to Max.