Au cours des 30 dernières années, le milliardaire de l'immobilier new-yorkais Robert Durst a été accusé de meurtre à trois reprises, sans jamais être inculpé. Brillant mais réservé, il a toujours gardé le silence. Jusqu'à maintenant.
Après la diffusion de la première saison en 2015, des preuves incriminantes sont révélées et Robert Durst prend la fuite.
De sa prison, Durst contacte d'anciens amis et associés, dont Nick Chavin et Susie Giordano, deux personnes qui l’avaient aidé auparavant.
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.