Monkeys and apes are among our closest relatives, but for some of the 20,000 of those in the US who own primates, the bond goes much further. Seeing them not as pets, but as substitute children, these animal lovers provide their 'monkids' with bedrooms, toys and designer clothes. Uncovering the industry that feeds this growing trend, this documentary shows just what some owners will do to make a monkey part of the family.