He's a Police officer whom is given a case which no one can solve. A Case About A Wanted Mysterious Criminal
No one ,it repeat No one till now had known who's she or he , The Criminal had stole up-to 20 Billion Dollars

One fact is confirm that the criminal when do the robbery always leave a message behind

Right now William is sitting on his desk ,looking at the messages the criminal had left till now

The Criminal Famous name is The Enigma .