On trial for murdering his girlfriend, philandering stockbroker Larry Ballentine takes the stand to claim his innocence and describe the actual, but improbable sounding, sequence of events that led to her death.

Jim "Lucky" Moore, an insurance salesman, comes up with a novel policy for his friend, Steve: a 'love insurance policy', that will pay out $1-million if Steve does not marry his fiancée, Cynthia. The upcoming marriage is jeopardized by Steve's ex-girlfriend, Mickey, and Cynthia's disapproving Aunt Kitty. The policy is underwritten by a nightclub owner, Roscoe, who sends two enforcers - Abbott and Costello - to ensure that the wedding occurs as planned.

The Canadians have discovered a valuable substance called Compound X, which can cure infantile paralysis. When a country at war with Canada learns that Compound X also contains magnetic properties that could aid them in their warfare against the British, they send agents to infiltrate Canada and steal a large quantity of the substance. It's up to Sgt. King (Allan Lane) and his Mounties to track down the agents and put an end to their scheme.

A good nurse ruins her career by covering up for her sister's careless mistake.

Joe, who owns a gas station along with his brothers and is about to marry Katherine, travels to the small town where she lives to visit her, but is wrongly mistaken for a wanted kidnapper and arrested.

Broadway star Jimmy Canfield stars in a patriotic show on the great white way during WWI. He plays the heroic soldier, but he is doesn't want to join the Army. To evade some troubles with fellow actress Berenice, he acts like joining the forces going over there, but that turns out to be real. In France he falls in love with a French barmaid and is arrested as spy. He escapes from prison, only to end in the uniform of a German officer leading "his" soldiers in an Allied trap. But being escaped from prison and wearing the enemy's uniform isn't that healthy in wartime.