Desc: Garden of the Dead: Directed by John Hayes. With Philip Kenneally, Duncan McLeod, John Dullaghan, John Dennis. Convicts on a chain gang sniff experimental formaldehyde fumes to get high. They attempt a prison break, are shot down by the guards and buried in the prison garden. Soon, they rise from the dead, using shovels and hoes to kill all who get in their way on their quest to get high once more.