Victor and Jacinthe locate a former MKUltra subject who gives them a letter written by Attorney Philip Lawson. Young Martin Lessard falls into bad company and steals some dynamite. Victor decodes the enigma of the Hangman Game, a new suspect disappears, and a link between the murder victims begins to emerge. Nadja learns that Captain Tanguay suspended Victor from the Major Crimes unit because two men died during Victor’s mission, and Tanguay blames Victor for their deaths.