Following the vicious murder of a young girl, suspicion falls on a half witted youth living in his aunt's boarding house. After a second murder Inspector Allen exposes the real killer.

A blackmailer is found dead in a locked room and all the suspects have unbreakable alibis.

A valuable diamond is purchased by a man-about-town who then disappears and his cheque bounces. His solicitor hires a private investigator who seeks to track down the man and his female companion but the fugitive turns up dead.

When a convict escapes from prison, to be re-united with his girlfriend and his stolen £20,000 he left with her for safe keeping, he is in for a series of surprises and then a trip to the seaside and a police chase follows.

When Audrey leaves prison after being framed for jewel theft, she asks stepsister Dora for shelter. Dora takes Audrey to a party hosted hosted by Lacey, her boyfriend. Lacey complains about his neighbor, the mysterious Mr. Malpas, who makes strange noises all night and is never seen. Next day, Audrey gets a job offer from Malpas, triggering a plot involving a missing heir, diamonds and kidnapping.

After a visit from a mysterious stranger from his past, enigmatic millionaire John Trasmore is found dead - shot at close range locked in his own strongroom, with the only key on a table in the middle of the room

A company-owner arrives home from a night out with his wife, disturbs a burglar, and is shot. A detective starts investigating the case, to find out who is responsible.

The Police investigate the theft of emerald jewelry which had led to murder.

A murderous jewelry heist attracts an ex-partner of the killer, a master criminal who's never been caught. His personal nemesis,a retired detective, joins Scotland Yard to crack the case, in turn recruiting the thief's estranged wife.

When a hired server is killed after a party for an artist and his fiancée, and soon after, the girl's hot tempered, disapproving old uncle is murdered too, the police look for a connexion. The clues available include a small, brightly painted key to the old man's safe, and some wigs found in an abandoned apartment near a crime site.

A rich man's secretary/fiancée is harassed by an assistant, who's sacked. Dangerous accidents start occurring and the assistant is suspected, but he's suddenly murdered just as he plans to meet with a Scotland Yard inspector.

A cracked safe seems like routine to the police, until the owner of the business is found dead the next morning and they find that a lot more money was in the safe than he had said. Where did he get it and why was it there?

Wally Sanders, a horseracing jockey, loses a race and crashes his car to claim an insurance. Jim Matthews, a shrewd and energetic insurance investgator, follows up the company's suspicion of foul play and stumbles deep into a web of corruption concering fixed horse races.

A body found in the River Thames is of an archaeology professor, murdered over three small fragments of an ancient text that could serve as a pretext for a red China-like country to invade a Nepal-like country.

Curzon employs the brash and confident Logan to save his ailing business. However Logan's confidence is not matched by his ability and his desperate measures lead to a life threatening situation.

With his marriage failing, a man hires a German assassin to murder his wife, who he suspects is having an affair. Things seem to go to plan at first, until the assassin decides not to kill the woman, but rather kidnap her, while still collecting his fee for the job. The husband wants proof of the murder (a body) before he pays. Things go wrong for both men when proof is not forthcoming.

Supt. Meredith is determined to bring a team of wealthy blackmailers to book. As he piles on the psychological pressure, the criminals begin to look for ways to betray each other and escape with a fortune in diamonds.

A victim's boyfriend sneaks into a blackmailer's flat to sort him out, but another man's already there, and both don't realise the crook has been murdered before they got there. The police soon arrive, tipped off in advance.

An international criminal arrives in London, and a detective is anxious to pin something on him for some unprovable murders of former lovers. The villain starts to suspect servants and henchmen of being a police spy known as "Number Six".

Burglars rob a townhouse and most of them are caught at the scene, but valuable jewels seem to have vanished. An estate agent realises they are still on site, and tries to purchase the building before anyone finds them.

A business man's fraudulent dealings kills many people. His partner threatens to expose him if he has further dishonest dealings. When the fraudster receives death threats he fakes his own murder to get his hands on the partner's evidence.

A German immigrant girl seduces a young P.C. and talks him into an elaborate scheme.

A gang of thieves are implicated in a murder while executing a jewellery shop heist.

Carol Halston discovers her sister withdrew £7000 before she died. The money is now missing. Betrayal, Blackmail and Murder.

Recently released from prison, Arthur Payne meets a benevolent stranger on a train who says he may be able to help him. A few days later, a second stranger arrives at Payne's houseboat, and Payne reluctantly agrees to carry out a no-risk jewel theft for a fee. When the staged burglary turns to murder, Payne realises he's been set up and he goes on the run. All the evidence points towards Payne being the murderer, but one irrefutable fact troubles Inspector Jackson.

An up and coming politician is caught in a compromising photograph taken by a maid, who turns out to be part of a sophisticated blackmail ring. When the girl is found murdered, he holds an incriminating old dueling pistol.

A team of gangsters hide out in a late-night pharmacy to await a drugs transaction, little realising one of their hostages is not all they seem.

Model prisoner Frank Stewart, convicted for burgulary, escapes from prison with the help of Jock Mackay, an associates for his boss Wally Lucas, who plans to track down Stewart to know the location of stolen bonds.

Dino Steffano is charged with fraud and set to stand trial, rather than face imprisonment, he feels his best option is to nobble The Prosecuting Barrister.

Solicitor Alan Phipps formulates a plan to blackmail his wealthy and unfaithful wife, Yvonne, and at the same time, get revenge against her boyfriend, John Brodie, by setting him up to appear that he is the blackmailer and for Yvonne to kill him. But Brodie, anticipating this predictament, has a hidden agenda behind all this to get the last laugh at Phipps.

A man who has been left for dead by the impostor who takes his place returns to bring him to justice.

A pair of hoodlums steal a car in which there is a ransom letter directed to a wealthy man whose daughter has just been kidnapped.

A CID detective is lured into a plot by girl who first pretends to fall in love with him, then that she's been killed and is now actually a heretofore unknown twin sister, and ultimately a murderous betrayal.

hady dealings and a duplicitious accountant put studio head Wayne Douglas and his new Oriental actress Lin in peril. Starring Yoko Tani, Guy Doleman, Ewan Roberts, Mark Eden and Anthony Booth. Directed by Garard Glaister.

Returning from a party the adopted daughter of Colonel Paxton and her boyfriend are surprised by an intruder. The colonel, however, instantly remembers him as a war comrade. Starring John Carson, Jacqueline Ellis, Derrick Sherwin and Richard Vernon. Directed by Geoffrey Nethercott.

Alan Roper is a smart young man on the fringes of big time crime. With his partner-in-crime, Lea, and his girlfriend Pat, he's planning his biggest job yet - the robbery of a betting shop owned by a man he hates. Starring Lee Montague, Ingrid Hafner, John Thaw and Brian McDermott. Directed by Gordon Flemyng.

Harold Crossley is a barrister and respected intellectual, but proves no match to his scheming young wife.

Joe Armstrong, a big-time racketeer, is deported back to Great Britain from America to find himself facing a murder rap for a killing he had committed twenty years before. Starring Cec Linder, Nigel Davenport, Zena Marshall and Paul Stassino. Directed by David Eady.

Alva Collins is the attractive wife of a captain in a civil airline. She is neurotic, vicious and unstable but only her brother knows that she is a hopeless psychopath whose condition can only deteriorate. Starring Maurice Kaufmann, Faith Brook, Alec Mango and Hugh Paddick. Directed by Quentin Lawrence.

A publisher is nearly framed for murder, but he appears to have been goaded by the blackmailer who has also blackmailed the publisher's wife.

A happily married couple plan a vacation in the city to see several stage plays, as the wife is an ex-actress. They arrange to temporarily swap residences with an older couple who want to visit the country. The older couple are actually part of a team of antiques thieves but are interrupted by a friend of the actress-wife. When the cottage couple find there is no city residence, and are told they are probably being robbed, they return home to find everything intact....except their pets and plants were poisoned. Someone seems to be taking advantage of the situation to upset their lives.

In prison, two inmates are getting out soon. One, soon getting out, has been sent up for a heist of several thousand pounds, still not recovered. The other, getting out before him, pumps the other for details of his home life, so he he can assume the other's identity and get to the loot first.

Top surgeon Philip Teasdale (Dudley Foster) plans to use his medical skills to bump off his wife's lover, but reckons without the greedy private detective he originally hired to prove him a cuckold

A disgraced ex-RAF pilot is enlisted into a smuggling scheme by an electronically sophisticated smuggler, who has a room full of computers and recording devices. The pilot is to take stolen diamonds from across the Channel, but he plans a carefully crafted double cross instead.

Robert Hilary is a public figure, a businessman and a politician. Happily married, Hilary still lets his desire for his new secretary get the better of him. Starring Michael Gough, Mark Eden, Toby Robins and Allan Cuthbertson. Directed by Gerry O'Hara.

Ben Arkwright, a co-director in the firm of Arkwright and Gallen, is having an affair with Anna, the strongly willed wife of Ricky Gallen, Ben's partner. Trouble arises. Starring Zena Walker, Kenneth Cope, Basil Henson and Anthony Dawson. Directed by Robert Lynn.

What appears to be a cut-and-dried case of murder of an aging onetime showgirl on Hampstead Heath by her lover is complicated by several factors, including a far more respectable paramour, and her insistence that a great inheritance was due her that nobody can verify. A police detective and a solicitor for the defence unravel the mystery.

It all began as a hoax, a stunt, a trick on the part of two cynical young journalists to spite society and thwart the Establishment. The idea was to expose the frailty of circumstantial evidence, and they planned to fake a murder. But the plan went disastrously wrong. Starring John Thaw, Ann Firbank, John Meillon, Peter Bowles and John Abineri. Directed by Patrick Dromgoole.