2001年在德克萨斯州发现的一具被肢解的尸体可能与德斯特有关。2012年，德斯特就采访事宜与导演安德鲁联系。

罗伯特·德斯特讲述了在他还是个孩子的时候亲眼目睹母亲自杀，以及他1973年与凯瑟琳·麦考马克（1982年失踪）的婚姻。

在他妻子失踪近20年后，罗伯特·德斯特再次登上新闻头条，他的长期密友苏珊·伯曼——凯西·德斯特失踪案的潜在证人——在洛杉矶被谋杀。

在被肢解的莫里斯·布莱克的尸体被冲到德克萨斯州加尔维斯顿海岸的两年后，罗伯特·德斯特被审判，但与他一起出庭的是一支强大的律师团队以及他们出色的防御策略。

自从凯西·德斯特失踪以来的33年里，在找出发生在她身上的事情或找到她的尸体方面没有取得任何进展。没有答案，她的家人和朋友继续寻找真相。

自电影制片人开始调查罗伯特·德斯特及其所谓的罪行以来，已近十年过去了。他们与罗伯特的故事中的100多名参与者交谈过，包括家人，朋友，警察，律师，陪审员和记者，试图了解真相。

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.

After Bob's death, Kathie's family files a lawsuit against his estate – forcing his friends and family to go on the record.