A shiftless dreamer, Michael Rogers (Hywel Bennett) fantasizes about a lifestyle above his means and marries a wealthy, young girl, Ellie Thomsen (Hayley Mills) who just came of age. They hire a famous architect to build their dream home amidst a series of suspicious incidents. The spouse has dark intentions toward his naive, inexperienced bride. Secrets from his past and sinister ties to their houseguest Greta (Britt Ekland), lead to a terrible turn of unexpected events.

On their way to Monte Carlo, Monaco, Marilyn and her husband, Neil, meet several other married couples, including Julian and Phoebe, who are traveling with a lost dog they plan to return to its wealthy owner for a large reward. But, when the dog’s mistress is murdered, the travelers become the prime suspects, and Inspector Bonnard is determined to track them all down.

Larry Abbot, speaker in the radio horror shows of Manhattan Mystery Theater wants to marry. For the marriage he takes his fiancée home to the castle where he grew up among his eccentric relatives. His uncle decides that he needs to be cured from a neurotic speech defect and exaggerated bursts of fear: he gives him a shock therapy with palace ghosts.

Young Cedric (Ceddie) Errol and his widowed mother (known only as “Dearest”) live in genteel poverty in 1880s Brooklyn after the death of his father. Cedric’s grandfather, the Earl of Dorincourt, has long ago disowned his son for marrying an American. But after the death of the Earl’s remaining son, he decides to accept the little Cedric as Lord Fauntleroy, his heir.

A headstrong young teacher in a private school in 1930s Edinburgh ignores the curriculum and influences her impressionable 12 year old charges with her over-romanticized world view.