Isolated in the heart of bustling Singapore four troupes of wild 'crab-eating' macaques share the freedom of the city's Botanic Gardens with hundreds of visitors. Monkeys and orchids side by side, and only the orchids are captive. Fed by passers-by, cursed by hard-worked gardeners, the animals provide, for the discerning eye, more than a glimpse of the monkey way of life.