The Stanford prison experiment was a landmark psychological study of the human response to captivity, in particular, to the real world circumstances of prison life, and the effects of imposed social roles on behaviour. It was conducted in 1971 by a team of researchers led by Philip Zimbardo of Stanford University.

Jailed ex-fighter Donavan Wallace strikes a deal with the prison warden for early parole - he is to go into a town to pick up a mysterious crate. He finds himself framed for the murder of a local waitress but before being thrown behind bars once again he is able to retrieve, and then hide, the crate. Donavan manages to break free from jail but finds himself pursued by various conspirators who are after the contents of the crate

The Daring Young Man is hotshot-reporter Don McLane, played by James Dunn. Always on the prowl for a good story, McLane is persistently outscooped by his rival, sob sister Martha Allen (Mae Clarke). After several reels of double-crossing one another, hero and heroine give in to the inevitable and fall in love. But as Martha waits at the altar in her wedding gown, McLane is off on another crusade, this time getting himself arrested to expose corruption within the prison system.

A Chaplin-like tramp is mistaken for a Bolshevik

Five defense workers on their way to the munitions factory tell their stories: a refugee from the French Resistance, a frustrated race car driver, a prison warden, a former Miss America, and an intellectual who dropped out of society and saw the country as a bum.

A young police officer "makes a mess" of a police operation, shoots a man in self-defense, and ends up in prison. There he learns that the world isn't black and white, but has many shades of gray, and makes new friends and enemies.

The story of a D.A. who becomes a prison warden and winds up overseeing the sentence of a man he prosecuted.

A prison chaplain (John Litel) rescues a young convict (Glenn Ford) on a misguided mission of revenge.

Prizefighter Jimmy Nolan, facing an opportunity to get a championship fight, is knocked out when he sustains what is apparently a permanent injury to his arm. From there, Nolan's path leads downhill. He is drawn into a romance with a nightclub entertainer, then is framed on a theft charge by a jealous suitor. After his prison term, Nolan makes a spectacular comeback in a fight which proves his courage and integrity, while disproving the fallacy about the old sports adage that "they never come back."

The new warden of a bad prison finds his biggest problem is his wife.

A prison warden fights to prove one of his inmates was wrongly convicted.

Suave thief Colman is sent to Devil's Island, where he becomes romantically involved with the wife of sadistic warden Digges.

Despite vocal objections from Warden Blakely, prison psychologist Diana Purlow journeys deep inside the mind of serial killer Jesse Mowat in a desperate attempt to reveal the source of his psychotic tendencies.

A young woman feigns illness in order to infiltrate a mental hospital, where she investigates the disappearance of her sister, a former patient. Meanwhile, the hospital warden and her attendants abuse and torture their charges, forcing them to star in cheap skinflicks.

Melanie is married to Tom, a controlling, cold and self-centered man who happens to be a prison warden. He finds her to be a liability to his career aspirations and secretly plans to have her kidnapped and killed, by Jack, a dangerous inmate.

Kate Soffel is married to a prison warden in Pittsburgh, and is the mother of their four children. Ed Biddle is a convicted murderer awaiting execution on death row with his brother Jack. When Kate meets Eddie through her Bible readings to the prisoners, she is drawn to him, and they pursue a clandestine relationship. She agrees to help the brothers escape, and begins a treacherous journey with them to freedom in Canada.

Years of carrying out death row executions have taken a toll on prison warden Bernadine Williams. As she prepares to execute another inmate, Bernadine must confront the psychological and emotional demons her job creates, ultimately connecting her to the man she is sanctioned to kill.

Suburbanite Ron is spoiled, young and not overly worried about the marijuana charges leveled against him. But, after being made out to be a drug dealer, he faces a five-year jail sentence in San Quentin State Prison. Physically frail and unaccustomed to his rough surroundings, Ron is primed to fall victim to sexual predators and bullying guards – that is, until he's befriended by Earl, a veteran inmate who finds meaning in protecting the vulnerable new kid.

Maria, an unfortunate young woman, kills her rapist father in self-defense, and is later tried, sentenced, and shipped off to a woman's penitentiary where she and her fellow inmates are subjected to psychological and sexual abuse at the hands of a psychotic lesbian warden.

A single mistake puts a 19-year old girl behind bars, where she experiences the terrors and torments of women in prison.