Prompted by the pine-fresh fragrance of zoo keeper Amelia's new perfume, adventure journalist Jane is reminded of a story her uncle Norman once told her about a rare midnight orchid found only in the Guatemalan jungle. This is no ordinary flower, but one that gives off a scent with such aphrodisiac properties it makes the person wielding it utterly irresistible.

That's more than enough to convince perennial singleton Lucy that it is high time they all headed to South America. There follows a roller coaster ride of an adventure taking in waterfalls, crocodiles and a gang of ruthless drug smugglers. But our heroes remain unbowed. Each and every challenge thrown at them is met head-on with courage, determination and deeply inappropriate footwear.