In a surprising turn of events, the iconic Saw franchise, which initially stumbled as an unsuccessful film in 2001 but later resurrect-ed itself as one of the most successful horror movie series in 2004, has unleashed its latest installment, “Saw X.” Directed by Kevin Greutert and written by Peter Goldfinger, the tone of this most recent installment is depressing and uninspired, with a very dull opening...