Expanding on the 2011 special `My Collection Obsession', this series introduces viewers to people who have dedicated their entire living space to a certain infatuation they have, from a woman's obsession with the colour pink to a couple who own more than 5,000 Cabbage Patch Kids. Some of the profiles include people who never before have allowed cameras to document their secret world of one-of-a-kind treasures and sometimes bizarre, never-before-seen habits and rituals. The programme also reveals the amount of time, money and effort required of the obsessors to maintain their passions.