In the last of the series, Angus Deayton tests the theory that it's not "who you worship but how" In Britain, he meets a Marxist who performs a socialist magic act, and a woman who has made her house a home for sick hedgehogs. In Sri Lanka, he meets a gem dealer and a Buddhist monk who has the answer to happiness - don't look for it.

Angus Deayton investigates money and meets a man who gave away a million dollars, a woman who married money and a man with an art collection worth millions who works in a supermarket.

Tonight Angus Deayton investigates pleasure. He meets a woman who runs a Tantric sex workshop in London, talks to a man in Colorado who smokes toad venom, enjoys a gourmet meal, and then drops in on a professional "couch potato" to consider whether happiness is really found "doing nothing at all".

Tonight Angus Deayton meets a modem-day Robinson Crusoe who has created his ideal world off the coast of Australia and visits a commune in Copenhagen where 1,000 people live in an ideal city.

Angus Deayton finds contrasting attitudes towards love and marriage. In America he attends a divorce ceremony and meets a love coach; in Jamaica he witnesses a production line of happy couples; and in England he meets a happy triple - a woman who lives with her twin lovers.

A six-part documentary series. presented by Angus Deayton, which each week explores a different aspect of happiness.

This first programme looks at ways to become a happier person.