When 23-year old Stacey Peterson vanishes, suspicion lands on her police officer husband, Drew. Soon police learn his last wife died under mysterious circumstances.
When federal intern Chandra Levy went missing, America was shocked to discover the target of the case was Congressman Gary Condit.
In 2001, Kathleen Peterson is found dead at the foot of a staircase in her home. At first deemed an accident, police soon suspect the victim's husband.
Prosecutors continue to investigate the Stacey Peterson disappearance. They soon discover a troubling pattern of abuse in Drew Peterson's previous marriages.
As police search for Chandra, a man in a park discovers a human skull. Then, a new suspect with a disturbing criminal record emerges.
Investigators discover that 16 years ago, Michael Peterson's friend Liz Ratliff also died at the bottom of a staircase, lying in a pool of blood.
Ingmar Guandique faces trial for Chandra's murder. Then, a mysterious woman emerges with recordings that change the course of the case.
The defence unveils what they claim is a sought-after piece of evidence. Shock revelations about an expert witness threaten to unravel the entire case.