A dark night in war time, with several black-outs, it's just a night for murder. Susan Cooper, a fast-talking girl reporter, doubles as amateur sleuth solving yet another mystery among Hollywood's famous.

Professor Pierre Ginsberg, extraordinary French instructor, is sailing with a wealthy couple as their instructor and guide in France. But when his client tries out his French in the dining room and everything is wrong, he fires Ginsberg. Two gangster-type Americans ask Ginsbeg to order them a meal, and advise him to get a girl for the ship's ball that night. Ginsberg, of course, picks the wife of one of them.

Private Investigator Terry Moran, who is in love with Nora O'Brien the daughter of Police Detective Tim O'Brien, is hired by Mrs. Hamilton to solve the murder of her husband, a fur dealer.

In Casablanca, Morocco in December 1941, a cynical American expatriate meets a former lover, with unforeseen complications.

The police arrest a man climbing over the wall of a cemetery after midnight. He claims that he is being blackmailed and is following instructions he received by mail to leave $1000 on a certain grave. It turns out that he's not the only one who got a blackmail letter from the same person--calling himself "The Black Panther"--and it also turns out that all the recipients are connected to an opera company.

In 1820 Spain, the son of a California nobleman comes home to find his native land under a villainous dictatorship. On one hand, he plays the useless fop, while on the other, he is the masked avenger Zorro.

Two newlyweds spy on the Nazis for the British Secret Service during their honeymoon in Europe.