A female vampire must bathe in the blood of virgins in order to stay alive. The trouble is that virgins are in short supply nowadays, and she is running into major problems in finding one.
Martin, a sculptor, is dying in his bed on a barge that floats along a fog-shrouded waterway. As he agonizingly descends into a final oblivion, his second wife is at his bedside, comforted by his first wife -- also present.
