After a former fire department volunteer dies in a house fire, inexplicable findings on scene, prison informants, and forged documents expose a duplicitous scheme, driven by insatiable greed, that began more than two years prior.

A young woman vanishes from small-town Oregon after heading to a Halloween party, leaving her family devastated and detectives hitting dead ends. Years later, new evidence from an unlikely source reveals the gruesome plan to silence a vulnerable victim.

When a successful Palm Springs art dealer goes missing, the search leads detectives through a complex web of charismatic conmen, luxury shopping sprees, and one small piece of evidence that uncovers an elaborate murder plot.

When a pregnant St. Louis elementary school teacher is found shot to death in her apartment, an unusual gun silencer, missing money, and the victim's own meal plan help unlock a shocking and devious murder plan.

After the search for a missing Florida couple leads to a chilling discovery in their garage, detectives follow the money trail to a surprising false identity that unlocks a deadly interstate scheme.

When a young mother and her newborn daughter vanish from Austin, detectives and FBI agents rush in to bring them home but instead uncover a heartbreaking motive, and a nine-month-long scheme to carry out the ultimate betrayal.

A San Diego teacher and coach is gunned down on the street, leaving his students and fiance shattered. Detectives swiftly retrace the suspect's steps to prevent future violence, while unveiling a sick, obsession-fueled murder plot.

When police respond to a domestic disturbance in a Bay Area suburb, it's unclear who on scene was the intended victim. Further investigation reveals a body, a carefully collected kill kit, and a slew of evidence of a lethal plan for revenge,.