Singapore, 1947. Newlyweds Su Lin and Le Froy are in the Cameron Highlands, an idyllic pocket of countryside on the tropical Malay Peninsula. But this is no honeymoon ... Le Froy is on a protection assignment for powerful businessman Max Moreno and his wife Elfrieda, whose associates have been brutally murdered.

But the hideaway cannot protect the Morenos from vicious threats and ghostly sightings, and when Elfrieda vanishes with a stash of precious emeralds, Su Lin and Le Froy fear the worst. The only clue to Elfrieda's disappearance is rotting fruit from a rose apple tree, piled outside her lodge.

When monsoon floods make escape from the Highlands impossible, Su Lin is determined to find Elfrieda with time to spare to get to know her new husband. But when Max's body is discovered surrounded by rose apples, passion turns to policing: Su Lin and Le Froy must work together try to prevent further deaths, including their own.