Night Shift!

It's night shift and you are in need of some cash. Try to avoid being detected by guards and steal the big diamond and the moneybag inside the storage room on the top left corner in the level. 

Move your character around by left-clicking anywhere on the ground. Toggle left shift to make him run faster or walk slowly. Hold the middle-mouse button and move your mouse to rotate the camera.

Right-clicking on an enemy to kill and to disguise like him. Other enemies won't detect you unless you kill someone  or carry your loot within their sight.

You can carry bodies by right-clicking on them. Click right once more to release the body you're currently carrying.

You can only carry one item at once. Make sure to carry both items to your starting position. And be careful: Even if disguised, guards will try to stop you once you are in the storage room (marked red).