Best movies like Key Witness

The editor of a sleazy tabloid newspaper has been borrowing money from his lover, the wife of a rich theatrical producer, and promises to marry her when she gets a divorce. However, the husband refuses to grant her a divorce, and takes back all the money and jewelry he has given her. The editor sees her husband leaving her apartment and, seeing his opportunity, kills her, takes all his IOUs (and the jewelry) and frames the husband for the murder.

A small-time gambler on the run from the law hides in his ex-wife's house.

A policeman's family helps to exonerate him of murder charges in the death of a man he had under interrogation.

An ex-Marine on the lam from a murder charge. He hitches a ride from glamor-magazine photographer, who is travelling cross-country with her principal model. Tensions rise when the woman realize the man with them may be a killer.

A innocent dentist is murdered and the only apparent motive seems to be to steal a set of dental x-rays. To the police it looks like an accident, but private eye Brad Runyan thinks there's more to it.

Framed for two crimes he didn't commit, and betrayed by his girl, Cliff Banks finds himself on the run from the police. Now distrustful of everyone, he finds a safe haven hiding out at a quaint country cottage under the care of a kindly old farmer and his daughter, a Cinderella-like blind woman who seems to be able to communicate with nature. There he is forced by their love to question his misanthropy.

A London curator loses the Mona Lisa to a collector, who discovers it's a fake.

Stevie Carson, a newspaper reporter, and Danny Butler, the "morgue" manager on the same newspaper, set out to track down the killer of a colleague, a book-reviewer who was involved with a group of rare book forgers and whose sister has been convinced her editor-fiance, Bill Monroe, killed him.

Prisoners battle each other -- and the police -- when they escape the Colorado State Penitentiary.

A young millionaire (Richard Carlson) joins the real world and meets a maid (Jane Randolph) and mobsters.

A nurse's younger brother is caught in a shootout between a criminal gang and the police, and he is shot and killed. The officer who is accused of shooting the man knows that he didn't do it, and sets out to find the real killer and clear his own name.

This Universal programmer was based on a Collier's Magazine story by journalist Quentin Reynolds. This story in turn was ostensibly based on a true incident, in which a gangster "returned from the dead" to save an innocent young man from the electric chair. The nurse of the film's title is Katharine McDonald, who falls in love with her prizefighter-patient Lee Burke as he recovers from a beating received in a fixed prizefight. Katharine must fend off the advances of criminal attorney John Dodge, another patient who also loves her and becomes jealous of Lee. But when Lee is framed for the murder of his disgruntled manager, Slice, by a henchman of the fight-fix leader, Joe Largo, Dodge takes on his defense and works with Katherine to discover the real killer. Convicted and sentenced to death, Burke is about to walk the "last mile", as Katharine encourages mortally wounded Largo to a deathbed confession.

A young couple buy a bankrupt vaudeville booking agency, and try to make it a success.

The story of a PR man hired by a millionaire to go to Reno to prevent his daughter from marrying an opportunistic gambler.

A girl reporter is trying to tack down the lady-in-the-title, as a key witness in a graft trial, which involves three murder and that many failed attempts. A prosecuting attorney in the district attorneys office is aiding her in solving the mystery of the missing lady.

A young actress has retired from films to marry the son of a prominent and rich politician in New York City. The father objects strongly to the marriage. The actress is being blackmailed by a second-rate artist who has stolen some letters from her that could be misconstrued. During the payoff, she is knocked unconscious, and awakens to find herself involved in a murder and the police have her marked as the number-one suspect.

A former actor poses as the son of a wealthy man and gets involved in a murder in which the real son is the suspect.

A former GI gets his old job back working for a bookie after returning from serving in the military. Unfortunately, he loses the $20,000 he was supposed to deliver to gambling and a con artist. His attempts to get the money back leads to bigger problems including a murder plot.

A fugitive receives help from a victim's sister as he tries to clear his name of robbery and murder charges.

Janet Spencer is driving down a country road when one of her tires blows out. This seemingly innocuous, everyday occurrence leads Linda into a labyrinth of murder, blackmail and intrigue.

This expose of the U.S. parole system, as seen through the eyes of FBI Director J. Edgar Hoover, takes dead aim on lawyers who manipulate the justice system in order to get undeserving convicts parole from prisons. The point is made when FBI agents are assigned to track down "Big Boy" Bradmore, who after getting an undeserved parole, via the efforts of a shyster lawyer, promptly murders an FBI agent.

Four bandits swoop down on a California bank and flee with $98,000, leaving a truck as the only clue to their identity. Jane Hartman, bank secretary, recognizes the truck as one on which her brother Charles worked. Fleeing to her brother, she is trapped by the gang, composed of its master-mind, Gibbs, Sidney, a gunman, and Randall, a blackballed airplane pilot. Under threat of bodily harm to her brother, she lures truck-driver Tony Andrews to the hideout, and he is forced to help them in their escape attempt.

Laura Mansfield catches a glimpse of mob hit man Jackie Wales after he shoots her businessman father. At the police station, Laura identifies Jackie as the murderer, but the policeman in charge of the case, Lt. Brewster, lets him go, citing a lack of corroborating evidence. Outraged, Laura worms her way into the unsuspecting Jackie's heart, trying to snare him and mob-connected club owner Armitage in her trap.

Eying a large inheritance, a reporter marries a rich woman with failing health. When she begins feeling healthy after the wedding, the reporter takes drastic measures to make sure his wife dies.

A drugged man covered in blood is picked up by police. Before the cops can get answers the man escapes in search of answers to the mystery himself.

Boston Blackie, in the 11th film of the Columbia series, indulges in some wit-trading with a squirmy spiritualist who deals in blackmail, murder and the occult. "Blackie" out to help his pal, "Runt," recover some jewels, finds himself involved in the homicides, and also finds himself as the prime suspect, and now has to find the real culprit in order to clear himself. So "Blackie,", a man of many talents and already a proved magician from cases past, shows he knows a little bit about dancing skeletons, walking phantoms and spiritualism himself, and holds a séance to unmask the murderer.

A detective encounters a woman in a nightclub. He finds that she is being blackmailed by a dancer who is murdered that very night. Of course, the woman becomes the main suspect. She and the gumshoe team up and begin searching for the real killer.

While on shore leave to celebrate his first anniversary, Lt. Peter Duluth (Warren Douglas) takes his wife, Iris (Audrey Long), to a Los Angeles hotel but is turned away. When mysterious Colette (Stephanie Bachelor) offers them her suite, the young couple becomes entangled in a murder plot. Aided by two PIs, Peter and Iris find two corpses and are desperate to locate Colette before she becomes the next victim, but the killers are one step ahead.

Foxhall Ridgeway, arriving in New York City from the West, stumbles onto a murder in the hotel room next to his. He gets tangled up into the affair, and with the aid of Phoebe, the hotel telephone operator who takes a liking to him, and also Countess Louise Browssiloff, who innocently had left some personal belongings in the murdered man's room and is most anxious to recover the incriminating evidence, Foxhall solves the murder mystery.

There's something very odd about Romano, a notorious gangster serving time in the federal pen. For one thing, Romano doesn't sound much like himself. For another, he always seems to be hiding something. Detective Lee suspects that something's amiss, and he's probably right!

Bookmakers try to fix a horse race.

A rookie cop falls for a "taxi dancer" in a dance hall, but his father has strong objections to the relationship.

A crime writer believes that a man imprisoned for committing the notorious "Flower Shop Murder" is innocent of the crime. He believes he knows who the actual culprit is, and sets out to befriend the man and get enough evidence to prove that he is the real killer.

A Death Row inmate uses his prison law studies to fight for his life. Based on a true story.

Muriel Rossi (Mary Brian), the sister of a racketeer, Al Rossi (Harry Woods), falls in love with Bob Martel (Bruce Cabot), the son of a police detective, Joe Martel (Grant Mitchell). Their love affair causes bot families problems when Bob is framed, but saved as a result of his father's access to police department films.