From what I gathered this story bears a striking resemblance to Children Shouldn't Play with Dead Things. There are these 4 "teenagers" we assume who decide to hold a seance on Friday the 13th. Ohh scary I know..... and of all places, a cemetery. Seems they are successful in resurrecting some zombies in which one of them is killed and the other badly maimed only to die later on. The ending seems even more bizarre when the man who was killed in the beginning comes back to life in the funeral parlor and starts eating corpses, hence the name I suppose. What's really strange is that the funeral director catches him eating the cadavers and supposedly has his eye balls ripped out only later to be shown in a straight jacket fully unscathed right before the credits roll.