10 strangers are summoned to a remote island and while they are waiting for the mysterious host to appear, a recording levels serious accusations at each of the guests, including Judge Francis J. Quinncannon and Dr. Edward G. Armstrong, and soon they start being murdered, one by one. As the survivors try to keep their wits, they reach a disturbing conclusion: one of them must be the killer.

This documentary by Joe Berlinger and Bruce Sinofsky details the murder trial of Delbert Ward. Delbert was a member of a family of four elderly brothers, working as semi-literate farmers and living together in isolation from the rest of society until William’s death.