This mafia boss is your assasination target, he doesn't know you are coming. He has been targeted by the most dangerous assassins in the world... but they failed. You are the only hope the department of assasination has.

one day you got a call from your boss and he said "this mafia boss has tons of security guards and has a system for his house" You come to his house to capture him by disguising as a bodyguard and turn off the system of the house secretly and go to his room at night..