...I apologize if U detest these films, but I'm a fan of most of the series...except Saw 5...the rest I find pretty cool, especially the first, second and sixth.
In case U don't know, I'll give U the skinny
There's this killer named Jigsaw, he hunts people down who have wasted or didn't value their lives. He places them in a series of deathtraps where Jigsaw tests how far they'll go to save their own lives. He also places some victims in a series of traps known as trials. The person must save the people in these traps, but sometimes, these people have come in contact to their lives, negatively. (i.e.: Would you save the person who killed your brother or something?)