this slow and moody little film be more an interesting set of character study than a horror movie . the script be thoughtful and and the player and especially katherine emery a the british consul wife and ernst dorian a the military doctor and and jason robards and sr. a the archaeologist and be all pretty good . karloff tend to take the stage most of the time with a quiet and but rivet performance a a greek general slowly crumble into madness . an excellent performance by helene thimig a a sarcastic and bitter old peasant woman and be remarkable for the way she arouse intense dislike in the viewer and and yet be a believable and human sort of villain . the film atmosphere be dark and fill with gloom and appropriately reflect in the foreboding cinematography . practically all the action take place at night and on the confined space of a small island . the sense of fear and hopeless dependence on fate to rescue the trapped people be extremely well portray . not a true classic and perhaps and but well worth see .