Steven Pressman (right), who directed HBO's “50 Children: The Rescue Mission of Mr. and Mrs. Kraus,” learned of the couple’s potentially suicidal rescue from his wife, Liz Perle (left) -- the Krauses' granddaughter. Photo by Elizabeth Kaplan / Courtesy of HBO

Steven Pressman (right), who directed HBO’s “50 Children: The Rescue Mission of Mr. and Mrs. Kraus,” learned of the couple’s potentially suicidal rescue from his wife, Liz Perle (left) — the Krauses’ granddaughter. Photo by Elizabeth Kaplan / Courtesy of HBO