In the gloomy metropolis of Dysturbia, crime is the order of the day. A lot of work for you who have just opened a small private detective agency! Crime Letters are a new, immediate form of puzzling. You are the focus of every case and are addressed directly! Every week you receive in an envelope - delivered directly to your door - new correspondence, witness statements and pieces of evidence that you have to put together like a puzzle to solve the tricky cases. In total, you will receive four evidence letters during the month before the resolution is in your mailbox at the end. Can you solve the mystery? —description from publisher