The Dyatlov Pass Incident is the kind of story that will keep breathlessly speculative true-crime documentaries spinning for years to increasingly limited returns. It contains just about everything a televisual “what if?” show requires to keep viewers engaged for an hour or so: a multitude of tragic victims, an intensely cinematic natural backdrop, a baffling patchwork of clues and evidence, and several possible solutions ranging from likely to absurd which people can choose between.