Garden of the Dead (also known as Tomb of the Undead) is a 1972 horror film directed by low-budget film director John Hayes and stars Phil Kenneally, Duncan McLeod, Lee Frost and Susan Charney.
A group of prison inmates in a chain gang obtain some experimental formaldehyde, and get high off of it.
The AFI mentions that "some modern sources claim that the film was shot in ten days in Topanga Canyon, Los Angeles County" from May to late June 1972.
[4] Writing in The Zombie Movie Encyclopedia, academic Peter Dendle said, "This scruffy low-budget production anticipates the pointless and depressing amateur zombie movies of the early '90s by almost twenty years.
"[5] Glenn Kay, who wrote Zombie Movies: The Ultimate Guide, said, "It's all incredibly silly, campy stuff.