After Gloria Marmolejo is found strangled to death in the desert, police wonder who would want to kill this beloved mother and grandmother, but, as they dig deeper, they uncover a dark, family secret that played a sinister role in her murder.

Chef Joe Vulevic's body is found cut into pieces, making his murder look like the work of the Albanian mafia, then investigators follow a trail of clues to the last person the victim's family would have suspected.

David Montemayor is poised to take over his family's trucking business when he's savagely gunned down on a quiet suburban street by gang members; his family may not realize that the real culprit is close to home.

After days of searching, police find Andrea White's body in a Florida swamp; now, her family is left with a nagging mystery over whether she was a victim of insulin shock or a brutal murder.

In Oklahoma, free-spirited Hope Meek disappears from her hometown, and her family wonders whether she ran away or was murdered in cold blood.

After Winnie Moniz is found lying in a pool of blood, dying of multiple stab wounds, her great-niece, Robin Casali, is charged with murder; at trial, a dark secret emerges that recasts the case in a different light.