The Living Dead at Manchester Morgue (1974)

(original title: Non si deve profanare il sonno dei morti, also known as Let Sleeping Corpses Lie and Don’t Open the Window)

When a series of murders hit the remote English countryside, a detective suspects a pair of travelers when it is actually the work of the undead, jarred back to life by an experimental ultra-sonic radiation machine used by the Ministry of Agriculture to kill insects.

Originally passed with cuts for cinema. The Living Dead at Manchester Morgue was on the uk video nasties list but wasn't prosecuted! Released with 1 minute 53 seconds cut in 1985. Re-released uncut in 2002.