Mickey is tired of living with his lazy dad and shrewish mom. With his faithful dog Ringo, he leaves home to seek fortune in London, but they meet Mr Space from another planet who teach them politeness and reconcile them to their parents.

Four socialites unexpectedly clash: heiress Brooke Carter runs into gambler Johnny Spanish at the race track while playboy Michael O. Pritchard nearly runs into stage star Kitty O'Kelly with his car. Backstage at Kitty's show, it turns out she and Brooke are old friends who attended public school together. The foursome do the town, accompanied by Brooke's companion Elizabeth, who throws herself at Michael's butler and chauffeur Rodney James.

In the silent film era, attorney Leo Harrigan and gunslinger Buck Greenway are hired to stop an illegal film production. However, they soon team up with the filmmakers and become important players in the show business industry. Leo learns he has a talent for directing, and Buck's cowboy persona quickly earns him leading-man status — but both men fall for beautiful starlet Kathleen Cooke, leading to a heated personal rivalry.

A young couple, Rosemary and Guy, moves into an infamous New York apartment building, known by frightening legends and mysterious events, with the purpose of starting a family.

The accidental mix-up of four identical plaid overnight bags leads to a series of increasingly wild and wacky situations.