Peter Lovegrove is shot dead on his doorstep, but he leaves documents proving him a blackmailer. This makes the murder motive obvious, but police discover a different crime racket before determining which victim fired the fatal shot.

A girl shot dead near the zoo is identified as Christy Baker, teenage daughter of the zoo's lion keeper Alex Baker. As the Homicide team investigates, Christy's tragic life story unfolds in flashback.

After serving 15 years for murder, Geoffrey Gibson still claims he is innocent. Suspicions about a former witness cause the case to be re-opened.

A woman dies mysteriously in the country, making a puzzling case for detectives as they try to determine if she died from natural causes or foul play. Investigations lead to a house called "The Haven" where they hope to find an answer.

A motorist dies in a Hume Highway crash when his car goes up in flames. Police soon discover it wasn't an accident, and the Homicide squad's investigations lead them to the wife of a man who planned a murder to swindle an insurance company.

A shot is fired at the celebrated Polish painter Alex Kapolski during an exhibition of his work. Police at first believe it is a prank, but they think again when Alex receives a note threatening his life.

As motor-cycle policeman Const. Bourke overtakes a speeding car on the Geelong Highway, the driver deliberately rams him sending Bourke to his death as the bike crashes over a bank in flames.

A man is found dead on a doorstep. The principal witnesses, two elderly women, insist that a ghost was responsible. The homicide detectives soon discover they have to grapple with something more dangerous than a ghost.

Det. Sgt. Mackay runs into danger when he discovers the hideout of "The Intruders", two men who have been terrorising and robbing people in their homes.

Teenager Margaret Lambert hears her boyfriend's familiar whistle, and she runs happily out to meet him. But death is in her path and Homicide detectives find evidence of murder.

Sen. Det. Doug Marshall is shot and badly wounded during an investigation into the murder of gambler Bernie Little.

Gina Lambton's son goes and talks to Inspector Connolly, on suspicions that he thinks his mother is being poisoned. The Inspector takes a concerned interest and investigates the case suspecting the father is doing it.

A quiet stroll turns into a nightmare for expectant mother Rebecca Jones when she witnesses a murder. The gunmen threaten her with death if she goes to the police.

Pamela Reynolds sees a man's body put on a railway track near Ballarat. She is afraid to go to police in case she is expelled from school, but her conscience soon gets the better of her and she goes and talks to Insp. Connolly.

Security guard Dave Carter is shot dead during a factory break-in, and his partner Harry Parr is knocked unconscious. Homicide detectives believe that Parr can help them identify the killers, but he won't talk for personal reasons.

When a woman's skeleton is discovered in a burnt-out bush shack, Homicide detectives question an old firebug whose description of a tall man seen leaving the burning house provides an important lead.

A pedestrian is killed by a car that TV personality Lyn Eliot-Smith is a passenger in. Lyn and the driver panic at the thought of the adverse publicity that will result if they report the matter to the police, and subsequent events reveal that more people were involved than first meets the eye.

Businessman Lloyd Chandler's staff arrive at work one morning to find his secretary dead in his private office. Chandler becomes the prime suspect for her murder.

The guests at a fashionable dinner party are shocked when Stephen Galliard collapses and dies. Homicide detectives discover he was poisoned when they find in his glass the unmistakable odour of bitter almonds.

A small girl's birthday party turns sour when she disappears after playing a game of 'Crocodile' in a local playground.

Gentleman farmer John Lancaster is shot dead and robbed while making up his payroll. His son falls under suspicion when he disappears.

A baker reports to police that he has found a woman customer shot dead and a man's body nearby. Detectives are puzzled when they can find only one body at the scene.

Teenager Joy Hamilton secretly dates a former boyfriend and while they are out together he is shot dead. Homicide detectives think she knows more about the murder than she is letting on.

Television personality Sunny Miles makes the headlines when she wins custody of her two children, but within days of her triumph she is stabbed to death.

Someone takes a shot at former gambler Nick Corbett. He is not injured, but police suspect that another big-time gambler, Norm Hansen, is out to get Corbett and will try again.

An hour after a night out with some friends, Ron Gibson is shot dead in his driveway. Police enquiries reveal there was no love lost between Gibson and his neighbours.

After Tina Carroll has left for holidays on the Princess Of Tasmania ferry, her friends are horrified when a body answering her description is found by a fisherman at Black Rock beach.

Aboriginal gardener Jim Paterson finds his employer, John Fleming, stabbed to death. Police find that many people will benefit from Fleming's will, including Paterson.

When Jill Henderson is found strangled, police have two suspects - her boyfriend, and an older man she was seeing on the side.

The difference between car racing at Templestowe Hill Climb and speeding on the road is stressed when Det. Sgt. Mackay meets an old Air Force friend who asks him to clear his son of a speeding charge.

The difference between car racing at Templestowe Hill Climb and speeding on the road is stressed when Det. Sgt. Mackay meets an old Air Force friend who asks him to clear his son of a speeding charge.

When king pin gangster Keith Wells is shot and critically wounded outside a grocery store, detectives question known criminals including former king pin Norm Jamieson who was recently released from prison.

Separated from his wife, artist Graham Reid is horrified when she calls at his studio and slashes one of his best paintings. He is later questioned by police when she is found unconscious in a telephone booth.

Aged pensioner Wally Walters and his sister Kitty find a well-dressed man's body covered by sheets of tin at a dump. Afraid they will become involved, they don't tell the police, and Wally soon finds he's involved in a counterfeiting ring.

When Christine Foley is attacked in a dark street, detectives have three suspects, until a missing letter provides them with their biggest clue and uncovers a blackmail attempt.

Elderly Geoffrey Collins pleads with his former girlfriend, Eileen Webster, to return to him. When she refuses he goes into a jealous rage and shoots her dead.

Harry Millet, well known trainer of athletes and boxers, is shot dead as he is timing one of his runners. Police investigating the case discover that he had many enemies in the sporting world.

A former Sydneysider, Tom Carrell, is shot dead while riding a motor scooter, and young Sydney vice squad detective Peter Barnes, who is in Melbourne on exchange duties, assists the Homicide squad in their investigations.

A ride on his bicycle along a quiet country road brings tragedy to Martin O'Brien when he is killed by a hit and run driver, and Sandra Fleming becomes a girl in conflict dealing with the social problems and temptations of a modern woman in a big city. Det. Peter Barnes is permanently transferred to the Homicide squad.

A school classroom is burnt down and a woman's body is found beneath the rubble. Detectives find evidence pointing to arson.

Teenager Loralee Bennett is at the center of a feud involving her jealous boyfriend David Harding which leads to a murder when a group of young people, including their mutual friend Chris Miller, are holidaying at Mt. Buller ski resort.

When a man out rabbiting is shot and critically wounded, pop star Gavin Jones from the 'Love-In' discotheque becomes a prime suspect because of his fanatical hatred of blood sports and animal killers. The clues to the murder lie in the lyrics of three songs that Jones wrote.

A teenage girl in a country town is strangled in her home by an intruder. When police begin questioning newcomers to the district the killer takes off in panic. On the run, the killer makes a savage threat to another young girl.

Marika Kerteli, ambitious editor of a publishing company, learns that she is to be sacked. In retaliation, she plans the ruthless murder of her employer.

A number of drunks have been allegedly assaulted by policemen, and Const. Allan Larkin comes under investigation by Homicide detectives.

A warder is killed at a prison farm when two prisoners escape. The Homicide team swing into action to recapture the two escapees, Lennie Lister and Dick Boyd.

A policeman is killed by masked bandits during a payroll robbery, and Homicide detectives rely on an informer to help them with their investigations.