Ann Harding plays a lovely but somewhat naive young woman who goes on a European vacation after winning a lottery. Swept off her feet by charming Basil Rathbone, Harding finds herself married before she is fully able to grasp the situation. Slowly but surely, Rathbone's loving veneer crumbles; when he casually asks Harding to sign a document turning her entire fortune over to him, she deduces that her days are numbered.

Ole Olsen and Chic Johnson are Broadway stars who return to Universal Studios to make another movie. The mere mention of Olsen and Johnson's names evacuates the studio and terrorizes the management and personnel. Undaunted, the comedians hire an assistant director and unknown talent, and set out to make their own movie.

In 19th century England, a noted brain surgeon rescues a former student from being hanged on a false conviction for murder, and spirits him away to an ancient, repurposed abbey far in the countryside. There, he connives his pupil into assisting him in mapping the functions of the various parts of the human brain, using living subjects who are under a terrible animation-suspending drug called "black sleep". Subsequently, the student, along with the daughter of one of the subjects, discover that most of these subjects have survived but are being kept in a dungeon-like cellar, in various stages of physical and mental derangement...

Dr. Peter Blood, unjustly convicted of treason and exiled from England, becomes a notorious pirate.

Sherlock Holmes investigates when young women around London turn up murdered, each with a finger severed. Scotland Yard suspects a madman, but Holmes believes the killings to be part of a diabolical plot.

Holmes and Watson board a passenger train bound from London to Edinburgh, to guard the Star of Rhodesia, an enormous diamond worth a fortune belonging to an elderly woman of wealth; but within the first hour of the trip, the woman's son is murdered and the diamond stolen and any of the passengers in their car could be the killer thief.

In the midst of World War II, Sherlock Holmes rescues the Swiss inventor of a new bomb-sight from the Gestapo and brings him to England, where he quickly falls into the clutches of the evil Professor Moriarty.

When a nobleman is threatened by a family curse on his newly inherited estate, detective Sherlock Holmes is hired to investigate.