Flypaper is an unconventional 'whodunit' in the form of a screwball comedy. It starts off with a guy named Tripp (played by Patrick Dempsey) who walks into a bank to get some change and ends up in the middle of two simultaneous bank robberies, executed by two different gangs, one of whom highly professional, the other one very much the opposite. What follows is an idiotic muddle of story lines and plot twists, which…