A six-part BBC series looks at the newest research from around the world to find out what could it be that makes us happy.
We all want to be happy but the problem has always been that you cant measure happiness.
Happiness has always been seen as too vague a concept, as Lord Layard, Professor of Economics at the LSE and author of "Happiness - lessons from a new science" points out.

Storyline: Rachel and Heck, long time friends and lovers, finally tie the knot, and during the celebration, Rachel starts a friendship with their florist, Luce. And while Rachel originally intended to match her new friend, Luce, up with her husbands friend, Cooper, she soon finds out that Luce is a lesbian. During the course of their friendship, Rachel starts to question her own sexuality. And though she comes to realize she may have feelings for her new friend, Rachel must decide who she will ultimately find the most happiness with: Heck, her new husband who is also adored by her family, or Luce, who has turned her life and everything she thought she knew about love upside down. Written by Anon

“The Craigslist Killer” follows the dark, mysterious life Philip Markoff (Jake McDorman) conducted online while preparing for a promising future as a doctor and a life of happiness with his fiancee, Megan McAllister (Agnes Bruckner). Seemingly destined for greatness as one of Boston University’s brightest med students, Markoff could do no wrong in the eyes of Megan, his friends, fellow students and professors. But hidden from those close to him was the violent wrath only he and his victims knew — beginning with his alleged April 14, 2009, first-degree murder of a masseuse who advertised her services on Craigslist. When police discover that the brutal killing and a number of other attacks on women were all connected to advertisements placed on Craigslist, their investigation ultimately leads them to Markoff. William Baldwin portrays the lead detective investigating the case.

A tribute to the Liverpudlian comic, Ken Dodd, in which he discusses his 50-year career and the influences of his comedy style. Features film clips of his early performances and footage of him on tour in more recent times.

Michael and Sara wed, but the happiness is short lived when the Feds apprehend her for the murder of Michael's mother, Christina. Once a hit is ordered on Sara, the team reunite to break out an increasing vulnerable Sara.

A mother and wife stricken with memory loss allows a dysfunctional family a second chance at harmony and happiness.

Director: Vivi Friedman
Starring: Christina Hendricks, Dermot Mulroney and Gabrielle Anwar

A mother and wife stricken with memory loss allows a dysfunctional family a second chance at harmony and happiness.

Holden and Skylar are in love with each other. Skylar lives with a large and extended family on Manhattan. Her parents, Bob and Steffi have been married to each other for many years. Joe, a friend of theirs, who has a daughter, DJ, with Steffi. After yet another relationship, Joe is alone again. He flees to Venice, and meets Von, and makes her believe that he is the man of her dreams. However, their happiness is fake all the way, and she returns to her previous husband. Steffi spends her time with charity work, and manages to break up Skylars and Holdens relation when she introduces Skylar to a released jailbird, Charles Ferry.