Deus ex machina is a plot device where an amazing, unforeseen solution arrives to fix a problem. Problem is this episode has the worst one ever of all the Inspector Morse episodes. Don't waste your time trying to follow the plot and figure out who's tormenting Morse as all of a sudden someone from his past that was earlier properly accounted and eliminated from suspicion, suddenly pops up a computer expert how hacking into prison, police and bank records to explain the irregularities. It's a terrible use of a plot device that provides a terrible ending that is most unsatisfying. Don't waste your time watching this one if you enjoying following rational detective work and insights, but do watch it if you like the timely appearance of a "writer's god" to unravel and magically resolve the plot.
Review of Masonic Mysteries
