Days after landing the biggest audition of her acting career, newlywed Shannon Madill Burgess fails to show up for a family gathering, leaving her loved ones in a panic. As investigators dig deeper, unsettling details emerge that change the direction of the investigation.

During the two-hour broadcast, correspondent Josh Mankiewicz reports on the murder of Colorado mother Kristil Krug. As investigators initially think the case is pointing to an obvious suspect, they uncover an elaborate plot that turns everything upside down.