you will be in responsible of a murder. When you open the game, you will find that someone who is taking guns kill a man in a room. Then you act as a detector whose task is to find the murderer. Then you will find a man who is dressed up like the Sherlock Holmes. Yes. It is you. You can open the map which is in the head of the screen to make your plan. And check the guns which could be used in this murder. You can take a taxi to find the murderer. Of course you can walk to detect anyone on the street. When you open the map, you can also know that there are several places which the murderers could be hidden. Do it now.