ignore the way this old clunker be market on dvd and disregard the american title and chamber of horror . there nothing supernatural here and there be no poe like thrill . the horror be a collection of old torture device own by the main villain and and they do not get much play . the english title give you a good sense of the movie . you see and there a door with seven lock which require seven different key . an heiress possess the seventh key and and several unsavory character will stop at nothing to get it from her . the trapping of this mystery thriller be familiar nowadays mainly from comedy and parody and cartoon . i especially like that portrait with the real eye peer out . i have see that countless time on scooby doo . then there the spooky tomb and secret panel in the wall and sinister servant and so on . leslie bank ( probably best know for the original the man who know too much ) play a flamboyant villain and sophisticated yet evil and complete with goatee and cape and a foreign accent of some kind and a pet monkey . this be one of the rare time i have see this stuff play straight more or less . fortunately and this movie be no more self serious than the lady vanishes . but do not expect any hitchcockian suspense here . we have an excellent cast and head by the beautiful lilli palmer and the amusing bank . lot of droll dialogue . ( i love frolic in morgue . ) lot of the aforementioned mystery trapping . but no suspense . the writer haven not the slight idea how to grab our interest and much less keep it . the director betray absolutely no flair for this kind of thing . it all a leaden bore . go watch scooby doo .