American GI Ernie Williams, admittedly weak-kneed, has an uncanny resemblance to British Colonel MacKenzie. Williams, also a master of imitation and disguise, is asked to impersonate the Colonel, ostensibly to allow the Colonel to make a secret trip East. What Williams is not told is that the Colonel has recently been a target of assassins. After the Colonel’s plane goes down, the plan changes and Williams maintains the disguise to confuse the Nazis about D-Day.

A Russian countess stows away in the stateroom of a married U.S. diplomat bound for New York.

Naive Stanley Windrush returns from the war, his mind set on a successful career in business. Much to his own dismay, he soon finds he has to start from the bottom and work his way up, and also that the management as well as the trade union use him as a tool in their fight for power.

An English mystery novelist invites a medium over for dinner in the hopes of gathering enough material for his latest book, as well as exposing her as a charlatan. However, a series of incidents occur during the course of the evening, which result in a chain of supernatural events being set in motion which wreak havoc on his present marriage.