A shy librarian falls in love with and marries a smooth-talker, who is secretly already married and plots the death of his new wife.

Barbara Feldon, Robert Powell, Linda Thorson, T. P. McKenna, Mary Wimbush, John Boswall, Ivor Roberts, Howard Rawlinson, Ronald Mayer, David Billa

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

When two young women rent a room in a dark house filled with strange inhabitants, one of them is killed and the other is haunted by a mysterious man who appears at the top of the stairs.

Donna Mills, Judy Carne, David de Keyser, Francis Wallis, Alethea Charlton, Brian McGrath, Peter Cellier, Clifford Parrish, Scott Forbes, Rhoda Lewis, Alan Roberto, Laura Collins, Richard Corbet, Charles Hill

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 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.

Norman Eshley, Katherine Schofield, Derek Smith, Garrick Hagon, Geoffrey Chater, Malcolm Terris, Tim Wylton, A. J. Brown, Roy Sone, Eric Mason, Michael Corcoran, Godfrey Jackman

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

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

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 businessman consults a marriage bureau after his wife dies, but his beautiful new wife turns out to be a witch.

Diane Cilento, Edward de Souza, Jeremy Longhurst, Jennifer Daniel, William Dexter, Iris Russell, Martin Wyldeck, Philip Anthony, Linda Cunningham, David Belcher, Reg Lye, Patricia Kneale

The life of a newlywed couple is interrrupted by a strange neighbor.

Hayley Mills, Gary Collins, Joyce Carey, David Warbeck, Jeremy Bulloch, Jonathan Elsom, Ronald Mayer, Barrie Fletcher, Richard Beaumont, Candida Brown

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

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 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 con man posing as a butler, with the help of his girlfriend posing as a maid and a disreputable doctor, poisons his employer, a wealthy widow.

Michael Jayston, Nyree Dawn Porter, Barry Nelson, Thorley Walters, Janet Key, Victor Winding, Clare Sutcliffe, Richard Oldfield

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 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

A popular member of the Oxford community is killed, and nobody can think why, so a police inspector is called in from Scotland Yard, and discovers they may be more to the victim than met anyone's eye.

'Who Killed Lamb?' is a one off play from Yorkshire TV which has no connection with Thriller but was transmitted immediately after 'Sign It Death' in the second series schedule and was billed and fully networked as an episode of the classic ATV series. An American actor is featured, along with scripted Americanisms like "janitor" While it bears a similar running time [65 minutes], it uses a standalone title scene and theme music. This was quite a prestigious and well-received production at the time.

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 young secretary doing work after hours is terrorized by a murderer in a deserted office building.

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.

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.

A young woman's friend disappears from a country hotel, but no one, including the police, believes her.

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

After a young woman is attacked on her way to visit friends in the country, she spends time in a mental institution. When she is released, she sees her attacker and exacts her revenge.

A woman who is hired to care for a paraplegic girl is a devil worshipper and promises the girl that she will be able to walk again in exchange for her soul.

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.

A scientist invites three students to help him with his new study, which involves mind control of criminals.

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

A man married to a rich woman hires a burglar to kill her but ends up being framed for the murder.

A young woman who has a psychic connection with her boyfriend looks for him in a hippie commune whose members claim that he never arrived.

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.

When a jazz pianist, while playing a recital, hears the voice of the man who years before blinded him and killed his wife in a bank heist, he tries to find the man.

A young woman investigates the disappearance of her boyfriend from a strange motel.

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

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

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

When he is a wealthy young woman mistakenly dials his number, an out of work actor pretends to be a psychiatrist and tries to help her understand her recurring dreams of murder.

Two female tourists become involved with criminals who are chasing a man recently released from prison who knows the whereabouts of stolen money.

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

A witness against a crime syndicate hides on a deserted island, where he meets a beautiful young woman who persuades him to murder her rich older husband.