There are very few Seen Traps that are cathartic, because in most cases the people who end up in Jigsaw’s line of fire are not worthy of the pain inflicted on them. Saw IVhowever, tries to make the point that some people deserve what Jigsaw does to them. The film’s victims are criminals who have hurt other people, and Officer Daniel Rigg must make the decision whether or not to help them out of Jigsaw’s traps. There’s a sex worker who trafficked other women, a serial rapist and an abusive father. It’s basically Jigsaw’s twisted version of a job ad, so when you watch these people get torn apart, he thinks you can walk away feeling like they’ve made it. The most visually striking of all the traps in this film is the Spike Trap. The aforementioned abusive father Rex and his wife Morgan are hung back to back in one of their daughter’s classrooms with spikes running through both their bodies. The spikes were carefully placed so that they would merely be flesh wounds to Morgan, but would kill Rex as they had pierced several of his major arteries. By pulling out the spikes and freeing herself, she tears the bonds that bind them together and leaves her abuser to bleed to death. It’s one of the best examples of how Jigsaw’s traps feel directly tied to the lesson he’s trying to teach.