AllMovie

Millicent Bracegirdle (Mildred Natwick), who has lived a sheltered existence in the English town of Easingstoke, shocks her tea-drinking friends with the announcement that she is going to go on her first-ever vacation -- and the destination is the wicked city of Paris. On the first night of her holiday, Millicent stops over at a hotel in Bordeaux, where she enters the wrong room and finds herself face to face with a murderer named Septimus (Gavin Muir). Needless to say, this is far more excitement than Miss Bracegirdle had ever bargained for -- but is she equal to this momentous occasion?