Mystery

Roger Quain, escorting two zoo-bound black panthers on the train from Milan to Paris, is unaware that a Western agent, Catherine Ullven, has hidden a microfilm in the collar of one of the animals. But when the train is derailed in the Swiss Alps and the panthers escape, she is forced to involve him in her mission, which now ...

When a woman goes missing on the eve of her wedding, her fiancee hires a detective to track her down

A gold mine in Arizona, that was formerly losing a lot of money, suddenly turns into a veritable money-making machine. However, the owner, instead of being happy about his now profitable business, insists to Charlie that something is fishy and that someone is out to murder him. Charlie and his "crew" travel to the mine, pretending to be tourists staying ...

Soon after a Chinese princess comes to the US to buy planes for her people, she is murdered by a poison dart fired by an air rifle.

While reading his favorite comic book, Daffy accidentally knocks himself unconscious and dreams he's Duck Twacy, famous detective, trying to solve the case of the missing piggy banks. Taking a streetcar (conducted by Porky Pig, in a non-speaking cameo role) to the gangsters' hideout, he meets up with such grotesque criminals as Pickle Puss, Eighty-Eight Teeth and Neon Noodle.

A treasury agent on the trail of counterfeit money confides to fellow ocean liner passenger, Charlie Chan, that there have been two attempts on his life.

A black cat is suspected of being possessed by the spirit of a elderly murdered woman.

A young woman is tormented by the belief that she is the victim of a witch's curse.

Walter Calvert (Davison Clark) calls upon his brother Henry (Davison Clark) at his eerie old house and demands a share of the family fortune, and threatens to kill Henry if he doesn't get it. A few days later Henry's car goes over a cliff and he is presumed dead. Bob Stewart (Robert Kent, a detective whom Henry asked to investigate ...