A pretty limp experience.
There are a lot of ways to utilize sadism in your projects, but I can't seem to find any appeal for this movie. It's not slow and detailed enough for something like the Guinea Pig series or a quick and to-the-point shocker like Baby Basher by MakoSucks. It's not even subversive like something MisterDavey would make because madness already is gory and violent.
The blowtorch idea is ripped from Hostel and focusing on hands is a really odd choice.
I'd say don't try to touch this concept again, because for it to work you need someone with a twisted enough imagination, which you clearly don't possess.