A doctor and his wife are held hostage in their country home by an escaped convict and his sidekick, but a journalist's arrival complicates matters.

A young woman investigates when her two roommates disappear after answering a newspaper ad.

A businessman claims that he's being framed for his wife's murder and hires a private detective to investigate the case.

A young woman schemes to marry a wealthy businessman by becoming his secretary. Francesca Annis, Patrick Allen, Moira Redmond, Edward Judd, Gerald James, Barry Stanton, James Bate, Sheila Fearn, Jackie Tong, John Arnatt, Leon Eagles, Jeremy Pearce, Carmen Blanck, Alan Bennion, Sonia Graham, Lisa Young, Jimmy Gardner, Stuart Nichol

When a group of assassins takes over a school for the blind, they are overcome by the resourceful students. Peter Vaughan, Dennis Waterman, William Marlowe, Sinéad Cusack, Leslie Schofield, David Jackson, Michael Lees, Alun Armstrong, Colin McCormack, Angela Walker, Catherine Chase, David Sands

A serial killer who marries and then murders rich older women falls in love with a beautiful young woman he meets at a health resort, but he must have one more victim before he settles down with her.

A college professor has an affair with a student and kills his wife, but then he receives blackmail letters from someone who claims to know what he did. Patrick O'Neal, Angharad Rees, Michael Kitchen, Gerald Sim, Gary Watson, Patricia Donahue, Terry Wright

While her husband is away, the wife of a private detective investigates a murder case.

A gambler is kidnapped by a deranged tycoon who believes himself to be the greatest gambler in the world and eliminates all of his opponents.

A fashion model buys a haunted Rolls-Royce. Donna Mills, Jeremy Brett, Robert Morris, Laurence Payne, Eric Lander, Michael Beint, Anthony Dawes, Bob Holness, Ray Marioni

A man investigates the disappearance of his brother at a country house. Jenny Agutter, George Chakiris, Anton Diffring, Russell Hunter, John Sharpe, Stephen Greif, Peggy Sinclair, John Atkinson, Barry James, Raymond Mason, Sue Robinson, Peter Casillas, Peter Elliott

A serial killer escapes from an asylum and picks a seemingly innocent woman as his next victim, but she is not as innocent as she seems. a.k.a "The Carnation Killer" (US title)

A woman thinks that she has witnessed a murder during a sleepwalking episode.

A young playboy hires an eccentric husband and wife team of private detectives to investigate the murder of his tycoon father. Gayle Hunnicutt, Stephen Rea, Jean Kent, Christopher Cazenove, Peter Dyneley, Derek Francis, Frances Bennett, Shirley Cain, Oliver Smith, Arthur White, James Appleby, Sally Miles, Francis Mortimer, Gilly Flower

A couple moves into a sinister old country house, and the husband is taken over by strange forces. John Carson, Joanna Dunham, Hilary Hardiman, Athol Coats, James Cossins, Richard Aylen, Jack Galloway, Mary Ann Severne

A woman confined to a wheelchair is terrorized by a sadistic killer.

While a couple vacations in London, the husband begins to act strangely, calling his wife "Theresa," and they become involved in espionage. Paul Burke, Polly Bergen, Dinsdale Landen, Basil Henson, Vernon Dobtcheff, Meriel Brooke, William Job, Roger Hume, Larry Taylor, Betty Woolfe, Neville Phillips, Ted Richards, John Caesar

A young model is terrorized by a peeping tom and obscene phone calls.

The grieving parents of a recently deceased soldier are visited by a man claiming to be their son's best friend, but he is not all that he claims to be.

An opera singer accidentally kills her husband who has suddenly shown up after a 10-year absence, but his body disappears.

A newlywed couple moves to a village, where the husband takes over the medical practice, and finds that the villagers are devil worshippers. Bryan Marshall, Alexandra Hay, John Turner, Glynn Edwards, Sally Stephens, Juan Moreno, Georgine Anderson, Lila Kaye, Sydney Bromley, Jenny Laird, Peggy Ann Wood, Graham Weston, Bill Ward, John Flint, Arnold Ridley, Harold Bennett, Elsie Wagstaff, John Gabriel, Lewis Wilson

When several young women have been strangled in her neighborhood, a neurotic librarian tries to catch the killer. Maureen Lipman, Richard O'Callaghan, Jan Francis, James Grout, John Le Mesurier, Colin Fisher, Rose Hill, Richard Pendrey, John Nightingale, Jenny Quayle, Georgina Melville, Sue Bond

A woman who has been in a car accident and has amnesia believes that she has committed murder and turns herself into the police. Richard Johnson, Zena Walker, Donald Gee, Ronald Radd, Robert Dorning, Christina Greatrex, Anthony Boden, David Lampson

After an actress who plays a nun in a TV series meets a strange fan, several cast members meet with fatal or near-fatal accidents.

A woman on a train finds a dead man, but later the body disappears and the man is seen alive.

The psychopathic twin brother of an architect escapes from prison and goes on a killing spree.