An old archaeologist finds the Roman tombstone he's been searching for all his life. It covers the passage from "this" to "the other" world. While trying to move her, the professor has a heart attack and dies soon after. But, dead only to his surroundings, he is actually in a kind of state "between life and death." As he is both alive and dead at the same time, he establishes a connection between the living and the dead, so the dead, driven by the desire to see their relatives, go through the passage that the professor discovered under the Roman tombstone, to meet their loved ones in "this" world. But the world of the living is not what they imagined it to be.