A lonely university student develops a romance with a beautiful interesting woman, who turns out to be a cyborg from the future.

A scientist builds a time machine and accidentally sends his apartment complex manager and a petty burglar to 16th century Moscow, while Tsar Ivan the Terrible travels to 1973.

When HMS Scotia pays a visit to the French Riviera, the officers throw a lavish party to celebrate the engagement of Captain Robert Randall to Jill Eaton, a charming American girl; among the guests are Mary Carlton, Jill's American friend, and Antoinette, a vivacious redhead. However, when the last shore-boat is deemed unseaworthy, the girls are obliged to spend the night on ship. A series of hilarious complications ensue, as the officers attempt to keep the girls away from the beady eyes of Admiral Hewitt – who chooses this very night to board the Scotia.

When three high-school friends invent a time-machine, they decide to use it to go back in time and prevent other youngsters from making humiliating mistakes.

A young Sicilian is swindled twice, but ends up rich; a man poses as a deaf-mute in a convent of curious nuns; a woman must hide her lover when her husband comes home early; a scoundrel fools a priest on his deathbed; three brothers take revenge on their sister's lover; a young girl sleeps on the roof to meet her boyfriend at night; a group of painters wait for inspiration; a crafty priest attempts to seduce his friend's wife; and two friends make a pact to find out what happens after death.

Lewis, a brilliant young inventor, is keen on creating a time machine to find his mother, who abandoned him in an orphanage. Things take a turn when he meets Wilbur Robinson and his family.

Before going on vacation, self-involved psychiatrist Dr. Leo Marvin has the misfortune of taking on a new patient: Bob Wiley. An exemplar of neediness and a compendium of phobias, Bob follows Marvin to his family's country house. Dr. Marvin tries to get him to leave; the trouble is, everyone loves Bob. As his oblivious patient makes himself at home, Dr. Marvin loses his professional composure and, before long, may be ready for the loony bin himself.

A young scientist studies the mechanics of time travel by having a conversation with a group of her future selves.

Two bumbling government employees think they are U.S. spies, only to discover that they are actually decoys for nuclear war.

Writer H. G. Wells pursues Jack the Ripper to modern day San Francisco after the infamous serial killer steals his time machine to escape the 19th century.

A womanizing reporter for a sleazy tabloid magazine impersonates his hen-pecked neighbor in order to get an expose on renowned psychologist Helen Gurley Brown.

Playboy songwriter Brad Allen's succession of romances annoys his neighbor, interior designer Jan Morrow, who shares a telephone party line with him and hears all his breezy routines. After Jan unsuccessfully lodges a complaint against him, Brad sets about to seduce her in the guise of a sincere and upstanding Texas rancher. When mutual friend Jonathan discovers that his best friend is moving in on the girl he desires, however, sparks fly.