For sixteen years, Adam and Angel have enjoyed the spice of an open relationship. But now, looking forward to marriage, their swinging lifestyle leaves Adam with lingering questions. As Ken digs into the rules of their complicated relationship he finds far more than he ever expected. Will the polygraph be enough to help this couple move forward with their lives?

The Lie Detective is a character-driven factual series that follows the work of independent Polygraph Examiner and self-professed truth seeker, Ken Donaldson, as he helps people from all walks of life in their quest for honesty, resolution and freedom from deception.