Evelyn Palmer, a débutante society girl who also is a property landlord, becomes interested in the plight of one of her tenants, a struggling band-leader, to the extent she becomes a hostess in a dance club, incognito, where the band plays, and soon is the band's singer.

In a 16th-century European town, the ruling family has been given a prophecy that, should there ever be twin boys born, the younger will murder the older; so is dismayed when twins are born to the popular baron. The older grows to be a selfish, slovenly man, who inherits the castle at his father's death and becomes ruler over the formerly happy villagers. He enjoys his power until he learns his younger brother is returning from abroad and, afraid of the prophecy, he determines to murder his sibling, hide his body in the "black room" - an old torture chamber sealed away behind the fireplace - and then impersonate him, right down to his withered arm. In this way he hopes to not only avoid the prophecy, but also escape consequences of his other criminal deeds and obtain marriage to a local girl of the nobility...

In this melodrama, a dancer works in a sleazy Marseilles portside dive that is really the front for a bordello. While dancing one night she meets a sailor and agrees to be his bride. Unfortunately, one of her former suitors suddenly shows up and a terrible fight ensues.

The fate of a city hangs upon the innocence of a girl charged with murder. A young, inexperienced, but adventurous newspaper reporter is bent on clearing her name by ripping the lid off a corrupt government machine.

Charlie's visit to Paris, ostensibly a vacation, is really a mission to investigate a bond-forgery racket. But his agent, apache dancer Nardi is killed before she can tell him much. The case, complicated by a false murder accusation for banker's daughter Yvette, climaxes with a strange journey through the Paris sewers.

A female blackmailer with a disfiguring facial scar meets a plastic surgeon who offers her the possibility of looking like a normal woman.

Dr. Garfield gets so involved in his research for an antitoxin for severe burns that he completely neglects his wife, Virginian, and their young son, Steve. Virginia divorces him and takes the son with her. Their paths cross again in a life-or-death situation.

In this mystery, an insurance investigator must find the arsonists behind the burning of a warehouse. The detective does get some good photographs as evidence, but they are stolen from his apartment. He really isn't a great sleuth and winds up accusing everyone but the real culprit of the crime. As a result, he loses his job and must perform the investigation on his own.

A young woman uses her body and her sexuality to help her climb the social ladder, but soon begins to wonder if her new status will ever bring her happiness.

After Police Captain Dan McLaren becomes police commissioner, former detective Johnny Blake publicly punches him, convincing rackets boss Al Kruger that Blake is sincere in his effort to join the mob. "Bugs" Fenner, meanwhile, is certain that Blake is a police agent.