In tiny Beulah, Florida, security video from the home of a couple known for taking in special needs children contains clues investigators must decipher to learn who targeted the parents for murder and executed them in front of their eight kids.

When a University of Florida students vanishes, police can't ignore the possibility that he disappeared into the alligator-infested swamps around Gainesville. But they discover he may have fallen prey to a deadly danger closer to home.