Utterly lacking in any redeeming features, and all-round a huge waste of time.
In a nutshell, you've been assigned by some special ops team to hack into the security system of a mysterious mansion, and use the security cameras and abundance of traps to protect the dim-witted guests who seem fairly oblivious to what's going on around them. You must switch between eight screens, and while you can eavesdrop on the bad acting and glean hints about the poorly-constructed plot, the aim of the game is to be in the right place at the right time as the black-clad "Augers" sneak around the house and attempt to slay the unwitting guests.
It sounds like a good idea in theory, but it's marred by a learning curve that's so steep it's almost vertical, and fairly unforgiving game mechanics which will kick you to a game over screen at a moment's notice. From what I can tell, it's practically impossible to get anywhere unless you've played several times already, and already know where the bad guys are going to be and when. It gets even more confusing when you have to keep track of the colour-code for the security system, which changes regularly (and, again, you have to be in the right place at the right time just to hear what the new code is).
I just couldn't bring myself to care about the flimsy plot or frustrating game mechanics, as this FMV-fest seems to be more of an exercise in frustration than anything else. I hear that some people love this game, but I'm afraid this reviewer is most definitely not one of them.