In the Heat of the Valley chronicles major events involving fires and explosions in the Ohio Valley along the Ohio River over the last 60 years. Cities along the Ohio River have endured the largest single family homicide arson on record, one of the largest nursing home disaster in which 35 people perished, and a gasoline barge explosion killing 2 people, injuring a dozen more and damaging scores of buildings and homes. Arson related murders investigated by law enforcement agencies are featured along with the largest single-family homicide in the Unites States in which 12 members of an immediate family were killed as well as the decapitation and attempted cremation of a murder victim.