As new evidence is revealed, Robert Durst is arrested and charged with Susan Berman's murder. But who will support Bob in his time of need?

From jail, Bob makes frequent calls to people who've helped him in the past, including a longtime friend who is keeping his own secret.

2020. As the Susan Berman murder trial begins, prosecutors revisit the 1982 disappearance of Bob's first wife Kathie, seeking to prove that Berman helped him cover up the crime. A secret recording is found, and Bob's pal Nick Chavin takes the stand with a shocking story.

When Bob's longtime lawyer and confidant Stewart Altman takes the stand, prosecutor Lewin accuses him of being evasive. But Altman's wife Emily becomes distraught under questioning, revealing crucial new details. Bob decides he'll testify – a risky choice for a defendant in a murder case but one that's worked for him before.

Following the trial closely, Kathie Durst's family hopes a conviction will bring closure – as her body has never been found and Bob has never been held accountable for her murder. As he takes the stand, Bob tells his version of events, but prosecutor Lewin examines the story a bit more closely than Bob expected.