Undercover Girl (1950)

Undercover Girl (1950) is a female undercover cop film noir in which all of femininity suffers the indignities of the history of the world up to 1950, and since 1950 too in some workplaces.

Definitely the target of workplace bullying as well as workplace sexual harassment from  smug mug himself Scott Brady, undercover girl Alexis Smith is also a good cop in an embarrassingly male world, only a few years out of wartime and no years into the 1950s, it is going to be a place where a woman is going to be muscled into the film noir environment of the home, this is going to happen.

She's on the range but they want her in apron, and it takes a touch cookie like Alexis Smith to break this patriarchy right open.

Highway 301 (1950)

Highway 301 (1950) is gang-on-the-run moralising action film noir with police procedural action on top, and starring Steve Cochran as a bold-knuckled psychopathic gang leader, who leads a mini-mob of five violent thieves and three women, who terrorise the banks and payrolls in North Carolina, Virginia and Maryland.

Supposedly modelled on the real life 'Tri-State Gang', this film noir, very much in the style of White Heat (1949) takes the criminal viewpoint for the most part, showing the exciting and sadistic execution of the robberies, the escapes and the life on the run that the criminals face. 

This is cut with elements of police procedural although the real glue of the movie is the voiceover, which in this instance is delivered by the chief investigating police officer.

Mystery Street (1950)

Mystery Street (1950) is a classic murderous cat and mouse police procedural and sporadically violent film noir thriller.

It's known as one of the first films to be shot on and around location in the Boston and Cape Code area.

In the story by Leonard Spigelgass, a married, upper-class super-bounder James Joshua Harkley, played by Edmon Ryan, shoots dead his pregnant girlfriend Vivian Heldon (Jan Sterling), discards the naked body in the sea and sinks her stolen car in a muddy pond. 

When the car owner Henry Shanway (Marshall Thompson) is arrested, super-smiley police lieutenant Peter Moralas (Ricardo Montalban) and never-smiling Harvard doctor Dr McAdoo (Bruce Bennett) set out to investigate.