St. John Legh Clowes No Orchids for Miss Blandish (1948), based on James Hadley Chases notorious novel, follows the brutal kidnapping of a rich heiress by gangsters in the American underworld. One of Britains most controversial films of its era, it mixes hard-boiled noir style, moral decay, and postwar violence.

SHOCKING as a book! SENSATIONAL as a motion picture! 
The final cinematic feature to be directed by the wonderfully named St. John Legh Clowes, No Orchids for Miss Blandish is a crime fuelled British noir which stars Jack La Rue and Linden Travers. A plot to rob a spoilt heiress of her jewels becomes complicated when two rival gangs accidentally commit murder. Desperation and a knee-jerk reaction turn the situation into a ransom for big bucks but will the tense and dangerous situation turn these wannabe gangsters into rich men or dead men walking? Shocking for its time, the movie became known for its strong themes of crime, violence and sex.

Från IMDB:
John Blandish is worth $100 million. His heiress daughter is soon to be wed to Foster Harvey, who believes shes a cold, unfeeling woman, despite loving her. Her cold emotional state is in large part due to leading a restricted life. A low level thug named Johnny overhears their secret wedding night plans, and peddles the idea of robbing her of the $100,000 worth of diamond jewelry with which she will be adorned to two groups of his gangster acquaintances, who are in competition with each other. The robbery doesnt go quite according to plan, with Miss Blandish ultimately being kidnapped and held under the eye of Slim Grisson, the heir apparent as head of the violent Grisson gang, currently run by Ma Grisson. Kidnapping holds higher risk but possible greater reward as everyone figures they can get at least $1 million for her. Ma has no plans of letting her go, killing her after getting the money. But a surprise