Meet Pam Hupp, Betsy Faria's close friend and the last person to see her alive after dropping Betsy off at home on the night of her murder. Betsy's husband, Russ Faria, makes a distraught call to 9-1-1.

Pam becomes a source of support not just for Betsy's family, but for law enforcement and District Attorney Leah Askey as they build their case. Russ hires Joel Schwartz, a top criminal defence attorney from St. Louis.

Pam gets her 15 minutes of fame when D.A. Leah Askey calls her to the stand as a witness for the prosecution even as Joel Schwartz tries to poke holes in the case against Russ.

Pam starts to lose control as Russ' new trial looms ahead, she's facing money troubles and a relentless "Dateline" producer, and difficulty caring for her sick mother. D.A. Leah Askey realises Pam may not be the star witness she thought.

Pam gains notoriety once the "Dateline" episode airs. As she squares off against Betsy's daughters in a civil suit for the insurance money, public opinion turns against her. Leah Askey finds her seat as District Attorney challenged by Mike Wood.

Pam goes to shocking and absurd extremes to extricate herself from the web of lies she has spun. Some measure of justice, redemption and hope is finally found.