This CID – 4 game is a series game, which is a sequel of the CID – 3. Dream up a situation that you are an investigation officer. You went for an investigation to a very old building regarding the acquisition of the jewels stolen. That building was far away from the city. Once you entered into that building, the door locked automatically. Whatever happen, you need to get the jewels and then you need to get out of that building. It would be achieved with your brilliance. As you are the person of good problem solving nature, surely you will find the necessary objects to solve the puzzles.