Fifteen-year-old Candice Parchment goes missing from her Georgia home and is found murdered months later. The investigation hits a dead end until the discovery of Candice's diary reveals a shocking assault and points to the person who killed her.

17-year-Taylor Behl has only been away at college in Richmond, Virginia for two weeks when she goes missing without a trace. Her diaries point to several possible suspects in what eventually becomes an alarming homicide

Conrad and Ricky Morales are happily living with their uncle and his wife in Washington State. But when Conrad goes missing and Ricky later dies under suspicious circumstances, it falls to Conrad’s diary to explain the shocking truth about the family.

Eighteen-year-old Hae Min Lee vanishes one day after school only to be discovered strangled in a park a month later. Her diaries offer a chronicle of her love life and guide police to a shocking arrest still highly contested to this day.

Family members are shocked to learn that Patricia Kimble was shot before her body was consumed in a deliberately set house fire; investigators scour her diary for clues as to who would want to kill the devout Christian newlywed.