Your parents gave you keys to their apartment so you could watch it while they are on vacation. You thought it was a good idea to organize a party. In the morning you counted the beer bottles and noticed that the number of beer bottles and beer caps don´t match. You will now have to find the missing beer bottle caps and get out of the apartment before your parents get home. Good luck!
Please use spoilers to give hints:
[spoiler=Title Here]Enter text here...[/spoiler]