An attractive policewoman, Primrose Taylor, assisting the Homicide squad with office work, nearly becomes a murder victim when detectives search for the killer of an air hostess - and all they have to go on is anonymous telephone calls.

Homicide detectives face a baffling case when a murder is committed at a drive-in movie. The butts of two tickets provide them with a clue and a major suspect.

Investigations by the Homicide squad into the sudden death of Margaret Fleming's husband reveal a family scandal.

When Bernard Coleman, manager of a pipe factory, is robbed and murdered, the main suspect is Mick Ryan, an ex-criminal employed as a cleaner at the factory.

A look through the rear window of their car makes a grisly start to a day for Margaret and Richard Evans when they discover a man's body lying in the gutter. Three possible suspects are questioned by the Homicide squad.

When the Watson home is broken into, both Helen and her husband Michael are chloroformed. Helen dies, setting off a chain of events which results in another death and a shooting.

John Mason, a wealthy businessman, is brutally bashed to death. Detectives find a lead to his murder with the discovery of two wills - and a great deal of animosity among the relatives.

Insp. Fox sees two men fighting on a roof top while out dining, one man falls to his death. The other man is arrested and Fox is the main witness at the trial, but the defence's case puts Fox's credibility into question.

Sister Cameron is shocked when a man's body is blatantly dumped in front of her at the hospital. A doctor later tells detectives that he witnessed two men driving away wearing boiler suits.

Tragedy hits a caravan park when John and Elaine Harvey, asleep in their caravan, are asphyxiated by gas. Detectives are confronted with a number of possible suspects, until a surprise turn of events reveals the truth.

Two Fisheries Inspectors disappear near a small coastal town, and one body is found later. His death looks accidental but the local police Sergeant calls in Homicide when he becomes aware of the peculiar attitude shown by the fishermen.

Ernie Clarke's wife, mother and daughter are found murdered by an axe in their home, and Ernie is critically injured. Ernie's ex-crim brother is a suspect, but the case's solution hinges on whether Ernie will recover to answer questions.

When 20-year-old Cindy Scott is found murdered in the country, the main suspect is a hermit, Dudley Roberts, living in a nearby shack. When he confesses, police doubt his guilt due to questionable details in his statement.

When a Ballarat bus pulls into the Melbourne terminus, Alfred Dickens' body is found slumped on the back seat. Police are left with two methods of identifying the murderer. His grand-daughter's disappearance complicates the investigation.

Eight year old Barry Neal is kidnapped, and callous attempts are made to extort money for his return. Sen. Det. Patterson, against his own training and judgement, becomes personally involved in the distress of the parents. The boy is later found murdered, and when Patterson catches up with the killer he nearly drowns him as they fight on the beach. Patterson later resigns from the Homicide squad.

Sen. Det. Delaney, transferred from the Crime Car Squad, finds his first Homicide case a gruelling challenge: investigating the brutal murder of a young woman, Rhonda Edwards, who is found strangled in a park.

Small time criminal, Lenny Clark, is killed at the scene of a safe breaking, and police find the victim's wife and his friends unconvinced that Lenny had anything to do with the job.

Am off-duty policeman is brutally attacked when he comes to the assistance of a pay clerk during a daring daytime robbery.

A blast from a shotgun greets Carol Connor and Shirley Cross as they leave a kitchen tea party. Detectives are anxious to question a former boyfriend known to have threatened one of the girls. Sen. Det. Delaney voices his unhappiness about the deaths and sorrow he now has contact with - he finds this new aspect of police work pessimistic and gruesome, and considers resigning from the squad.

Tony Williams meets a violent death when he is killed by a spear gun as he swims with a friend. His death looks accidental, but police suspect foul play, and discover that he was involved in a blackmail racket.

A series of brutal attacks on young women becomes a grim case when one of the girls is murdered. Since the method of attack in each case is similar, police believe the same man is responsible - until the attacks continue after they have caught the offender.

When a wealthy businessman is found murdered, detectives investigate the activities of his girlfriend, his step-brother and an infatuated young man. An eccentric yoga teacher, Loretta Lorne, aids the detectives in their investigations.

An armoured car robbery on a country road and the shooting of the criminals involved opens a puzzling case when one of the security guards accuses his partner of deliberately murdering them.

The routine investigations into a minor car accident develop into the search for the murderer of a married woman. Police suspect the woman's husband could have been involved. Sgt. Mackay's girlfriend Joy Bower takes a job in Brisbane after refusing his marriage proposal.

Health fanatic Joe Mason's body is found by a friend at the bottom of a public pool after an early morning swim.