Playboy Larry Blendon introduces his grandmother Stella Blendon to his fiancée, radio singer Virginia Berneaux. Despite Larry's record of broken romances and divorces, Virginia decides she will marry him. Virginia is slain that night and Blandon telephones his friend, Philo Vance, to help find the killer.
A showgirl working for an inventor battles crooks, who want to steal his ideas.
A rough and tumble man of the sea falls for a meek librarian.
After a demonstration of new PT boats, navy brass are still unconvinced of their viability in combat, leaving Lt. "Rusty" Ryan frustrated. After the attack on Pearl Harbor, however, Ryan and his buddy Lt. Brickley are told they can finally take their squadron into battle. The PT boats quickly prove their worth, successfully shooting down Japanese planes, relaying messages between islands, and picking off a multitude of enemy ships.
A soldier falls in love with a newly-married woman after her husband abandons her for a business meeting on their honeymoon.