An informative and well-researched documentary about the nature and meaning of happiness, emotional connection, relationships and the human condition. It's packed with many poignant insights from a variety of sources and case studies, as well as interviews with a few well-known personalities who share their first-hand experiences and personal/emotional challenges without any trace of their 'celebrity' personae peeking through.This is a must-see film as it covers a rich and colorful array of insights and scientific data without ever becoming self-important, preachy, cheesy or trite. I really enjoyed the arc of the series and found myself completely engaged in every moment of each spirited episode.