A policewoman goes undercover to a bar/some place on a rainy night. She is taken home by one of the criminals and given food by wife.

A policeman woos a cook for the free meals. When her employer discovers them, the policeman tries to escape, but the employer throws a jug of milk on him.

During a raid, a cop lets a pretty speakeasy employee escape and later begins dating her. Although she loves him, his salary and dull life leave her wanting.

A female cop goes undercover in a high price whorehouse to find a murderer and discovers she likes the assignment more than she should.

Detective woman works as a prostitute undercover

The wife of a prison warden falls in love with one of his prisoners.

Around Ginza there is a night-city of bars and cabarets, hostesses, customers. Assisting to keep order here is Kagari (Akira Kobayashi) who specializes in the women, their problems and troubles. He has saved many a girl from blandishments of pimps, makes customers pay up and women play straight. So he is called 'the woman's police-man' and he takes his job seriously. One day, Chiyoko (Yukiyo Toake), a former hostess, comes to him. Her husband has been murdered and she wants help. The man had been a college classmate and Kagari decides to do what he can. In his investigation he overturns a whole nest of intrigue. Men he had thought irreproachable turn out to be corrupt; solid citizens are seen as the worst kind of scoundrels. Until now, Kagari has specialized in women and their problems. But, realizing the real state of affairs, he rolls up his sleeves for a good cleaning- up-at the same time discovering the murderer of his friend.

A drunken man and a woman battered by her husband, and her husband gather and make a fuss in the police substation. A young policeman who just broke up with his girlfriend cannot afford to listen to the drunken man. A middle-aged policeman is confused while inquiring the battered wife and her husband who can't understand why his wife left him. The police substation is lit up like a lighthouse at the corner of the city people are confined in, and the wave of the people's episodes flows like a river.

Determined to prove herself, a police officer must go undercover at a seedy lounge to catch a serial killer.

A lady cop infiltrates an all-female criminal gang.

A tricky woman criminal, in league with an international crook, falls in love with the honest detective tracking them.