In Illinois, a psycho is driving around taking shots at random people from his car. He shoots at a woman in driving past, people in their homes, or even two boys walking down the street. Amazingly, he never quite kills anyone. Witnesses can't agree on his looks because he changes his coat and hat, and puts the top up on his convertible.
Police are baffled by a wave of burglaries where the gang has a party at the site of their crime before leaving the building. There only clue is whiskey bottles stolen from a liquor store that are found in the courthouse attic by accident.
A gang of bank robbers plaguing Fresno, California appears to be operating with inside information about branch operations and even has keys to the drawers containing the money. While the police try to find a link between the holdups, the gang changes its base of operations to Modesto, California.
Aided two henchmen, a robbery suspect escapes from police custody, leaving one dead and one wounded policeman in their wake. When the trio find themselves hemmed in by roadblocks, they abduct a pretty pair of sisters and manage to slip past the police cordon. When their getaway vehicle is spotted by a newsboy, lawmen close in on the crook's hideout to rescue the hostages and bring the thugs to justice.
When a skeleton is found buried in a shallow grave behind a condemned apartment building, police investigators searching for clues find additional skeletons hidden in the walls. To solve the crimes, the detective must missing persons, both living and dead before they can find the serial killer.
After identifying a body found in the Portland, Oregon bus depot, police detectives find themselves not lacking for suspects - a jilted husband, several boyfriends and a wealthy businessman with plenty to hide.