Collect clues in a museum to find out why a man was murdered there. This started as a test to figure out the difference between the basic and advanced editor, but then I got into writing it. Have fun!
Edit: Be sure to click on 'Interrogate' and 'Investigate' on the first page. Once in your inventory, you can use them on the main story pages to get more information. Once you have used your skills, be sure to go back to the main story page to continue.
PS: don't worry too much about 'winning' as some of the less than perfect endings are humorous as well.