Thanks for playing and for your comments Rigachupe!
A few points that are possible to miss...
There are two different ways to turn the radiator off.
There are two ways to get points related to Will's lucky charm.
There is something you can do with the necklace.
Take time to enjoy the balcony after the bosses have gone back inside...
When Samantha is playing her game, you can't switch the breakers (as the radiator has already been sorted out by that point and so there's no need) but you can give her some help when she's stuck.
Best to make sure the office door is as Lo Kingdom left it after you've got the keycard.
Hope this helps!