clouzot follow le corbeau and where no one knew who be pen the poison thus everyone be suspect and with another masterpiece and quai de orfevres four year later in which we know from the outset ( or think we do ) whodunnit . top bill louis jouvet doesn not appear for forty minute by which time clouzot have establish a rich milieu of music hall and music publisher and etc and a fine cast of colourful character while angela lansbury lookalike ( lansbury appear in woman of paris that same year ) suzy delair score a the chanteuse whose desire to improve her lot inspire the jealousy of her husband or accompanist bernard blier who follow her to the home of an elderly letch only to find he be already dead . from here thing go seriously wrong and his car be steal before he leave the premise so his pre arrange alibi be out the window whilst meanwhile and unknown to him and his wife confess to the murder to the photographer neighbour and a closet lesbian in love with her and who volunteer to return to the crime scene and retrieve delair scarf and as long a she there and thoughtfully wipe her print of the murder weapon and a champagne bottle . at this point investigator jouvet get involve and from then on it a case of keep the plate spin in the air . clouzot output be relatively small but virtually all of it be and a spencer tracey say in another context and cherce and with le salaire de peur and le diaboliques still to come . in short this be a must for french cinema buff .