A Texas woman's apparent suicide devastates the family that she leaves behind. But after one investigator dedicates decades to solving the mystery of what drove her to make such a tragic decision, a truth that is far more sinister is discovered.

A Florida man's body washes ashore on idyllic Cocoa Beach, the apparent victim of an accidental drowning. But as investigators pull back the layers of the victim's personal life, a far murkier truth is revealed.