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.

At trial, prosecutors revisit the 1982 disappearance of Bob's first wife Kathie and make the case that Susan helped Bob cover up the crime.

Longtime Durst confidant Stewart Altman defends him on the stand, but when his wife Emily testifies, she reveals crucial new details.

Bob takes the stand to tell his version of events, but on cross-examination finds prosecutor Lewin better-prepared than he anticipated.

Found guilty of Susan's murder, Bob is sentenced to life – but dies in jail a few months later. Seeking closure for the murder of his wife Kathie, her family files a suit against Bob's estate, now controlled by his second wife, Debrah. Bob's friends, including Debbie, and members of the Durst family are questioned on the record for the first time. Who will be held accountable?