Eccentric tycoon Jasper Whyte hosts a dinner at his mansion and announces that he will divide his money and give each guest a million dollars before the stroke of midnight. When his long-lost granddaughter suddenly arrives, Whyte changes his mind and proclaims that she will receive his entire fortune. A second lady appears at the estate, claiming that she is actually Whyte's granddaughter, Doris Waverly, and the first woman is found murdered in her room! With each guest possessing a motive, the mystery of the killer's identity briskly unfolds through a stirring series of surprises.

Philip de Mornay, a courtier in the French royal court of the 18th century, falls in love with Daphne La Tour, the daughter of a nobleman. Knowing that her family would never approve of their marriage, he takes her and hides her in a brothel, but is soon captured by pirates. Soldiers looking for women to bring with them to a settlement across the ocean in Louisiana raid the brothel and take the girls, including Daphne. Later on the trip to the new world their ship is attacked by pirates--and she discovers that her lover Philip is on board the pirate ship.

A district attorney and a reporter try to find the killer of a D.A. who uncovered a massive stock fraud.

Archaeologists defile the tomb of mummified Kharis, who was buried alive for falling in love with an Egyptian princess.

Based on a summary in a film magazine, Enoch, Annie, and Walter grow up as friends. Later, Annie decides to marry Enoch, but Walter, though bitter about the decision, remains their friend. Enoch and Annie have two children. Then business takes Enoch on a sailing voyage, which he states will take less than one year, and he asks Walter to look over his family while he is gone. Enoch does not return, and Walter dutifully cares after Enoch's wife and children. After ten years word comes of a wreck seen in the Pacific, and everyone believes Enoch has died. Walter and Annie then marry. One night a stranger comes to the house and through a window sees Walter, Annie, and the children happy. The stranger, who is Enoch, finds an old woman who tells him what happened. Enoch tells her to keep his secret, and then leaves. He later dies with a smile on his face.

Coke Ennyday, the scientific detective, divides his own time in periods for "Sleep", "Eat", "Dope" and "Drink". In fact he's used to overcome every situation with drugs: consuming it to increase his energies or injecting it in his opponents to KO them. To help the police he discovers a contraband of opium (which he eagerly tastes) transported with "Leaping Fishes", and the blackmail of a mysterious man who wants to marry the "fish blower" girl. Will Coke be able to free the girl ?

A woman is married to the son of a doctor, the proprietor of a private sanatorium, where she is under unwilling treatment. Both the son and the doctor indicate they want the marriage dissolved. Arriving at the scene is a mysterious personage identified as the doctor's cousin who formerly was a stage magician in Europe. He is accompanied by a threatening dwarf.