This a great game which isn't included in my SL game, so enjoy! You need to use the power really sparingly, and listen for Ennard every time he moves, then check the cams for him to confirm his location, then once he's at your door, shut it, and then look at the cameras again, just to check he really is there (he sometimes double backs now) then if he there, put the cams down and wait for another noise then open the door. It's really fast paced, so be quick with your reaction times.
Credit to myself for fixing the glitch with the power on my G. Chica account.