Introverted backpacker Jeremy wanders off trail and discovers an eccentric, otherworldly town nestled in a mountain basin.
The people he finds there are pleasant but a little bit peculiar. He befriends a reticent doctor and his quirky wife, and Margery, who regularly leaps from a cliff in death-defying bungee jumps.
Why, he wonders, do the otherwise healthy and upbeat townspeople seem to be disappearing? Does it have anything to do with hallucinogenic mushrooms and the transition from life to whatever lies beyond?