While parents often fear their children being abducted by a stranger, experts say it’s far more likely they could welcome an abuser through their front door.

Mary Ann and Bob Broberg were allegedly groomed by Robert Berchtold, a trusted family friend who twice-kidnapped their daughter, Jan Broberg.

Robert Berchtold was accused of grooming a tight-knit Idaho family with the aim of marrying Jan Broberg, a 12-year-child he allegedly spent years brainwashing. 

In Peacock's "A Friend of The Family," Jake Lacy's character is called "Brother B" by Jan Broberg's family, despite not being related by blood or marriage.