Trickery. Movies are built on and out of it. The twist ending. The unusual casting or the actor playing against type. Even stories can create their own magic through their use of ideas and invention. One of the most popular, especially in certain genre titles, is the trap. Villains love to set up such ambushes as part of their devious plans, while heroes occasionally use same to defeat their foes. The more criminally insane often employ these concepts as a way of teaching the immoral or uncaring victim pool a lesson, while the police implement similarly styled subterfuge to discover such psychosis. In fact, one franchise, the one built out of James Wan and Leigh Whannel’s game changing suspense thriller Saw, went from being about a madman with a mission to all about the traps. In fact, few fans can remember the mythology. Most remember the various cruel contraptions Jigsaw uses to meter out his revenge.