Its January 1977 and Gary Gilmore is about to become the first convicted murderer to be executed in a decade. Gary's youngest brother, Mikal, can help prevent the execution, but first he has to get to know the brother he barely remembers. Born of a brutal father, raised in a family haunted by death, religion and superstition, the brothers discover their shared past. The true story of the Gilmore family, told by the journalist Mikal Gilmore, brother of the notorious murderer Gary Gilmore.