You get a mission to kill your boss enemy, scaramouche. As a sniper, you find this easy. And you plan to kill him tonight during the party.

You are kneeling on one knee, on top of a building and your hand is holding the gun, your finger is on the trigger and ready to shoot. But suddenly he turns to you and smirks. You start to think why he can see you even though you are on top of the building and hidden, even you are far away from him.