Directors Dayna Goldfine and Daniel Geller have assembled a fine account of a sensational 1930s sex-death-and-disappearance case that unfolded in Charles Darwin’s South American laboratory, the Galapagos Islands.

A German doctor and his mistress abandoned materialistic society in 1929 to start over in a remote tropical “paradise”, Adam and Eve–style, but the arrival of homesteading neighbours and a phony baroness and her entourage ultimately led to three deaths, two disappearances, conflicting stories, and an enduring mystery.

With effective use of archival footage, modern interviews, and narration from survivors’ journals, this doc will have viewers debating whodunit for hours over postscreening beers.

In an interview, a descendant of the doctor elucidates the problem with humans’ doomed search for that ever-elusive paradise: “Wherever you go, you bring yourself.”

Rio, May 6 (6:30 p.m.)