A man dies a violent death aboard a boat at dawn. Although there is an eye-witness, he claims he was too far away to identify the killer, and the Homicide detectives have some fast thinking to do as they pursue their suspects around the confusing world of the waterfront.
When William Nelson blows up the car of a business acquaintance, killing him, he is quickly brought to justice, and sentenced to serve a life sentence for murder. However, Nelson is cunning and resourceful, and escapes from custody and it is not only his freedom he wants, but a chance to even up the score against the main prosecution witness.
A convict who has broken out of jail is murdered at the rendezvous with an accomplice, and Det. Sgt. Bronson suspects that there is a connection between his death and an unsolved robbery committed five years earlier.
Retired Inspector Bob Fenton, former chief of the Homicide squad, is fatally stabbed and his body left in the driveway of the home of Insp. Connolly. Fenton appears to have been the victim of revenge, and Connolly realises that he could be the next target.
A business colleague of Douglas Hadrion, knowing he has a weak heart, succeeds after several attempts in causing his death by inducing a heart attack.
A body found floating in Port Phillip Bay is identified as that of gambler George Duff. He has been shot. Homicide detectives are surprised when their investigations reveal that Duff was married to the headmistress of a leading girl's school.
A water skier is murdered when she takes a tumble and the speedboat bears down on her. Homicide Detectives uncover their first lead at a baby-sitting agency, and soon find a connection between the agency, a group of juvenile delinquent motor-cyclists and a series of burglaries.
Catherine Leonardson has a wealthy husband who has taken second place to the other men in her life. Tension in their home turns into murder, and detectives find evidence making two men look equally guilty.
An ingenious plot to steal a consignment of diamonds leads to murder, and detectives are baffled as to who the culprits are - until they turn their attention to a number of large crates recently delivered to a factory.
Two criminals kidnap a doctor in order to treat a wounded man who was injured during a gunfight in which another man was killed.
The Homicide squad has help from the Forensic division when investigating the death of a woman who had apparently ceased to exist a year before being killed.
Matters are complicated for the police when a young girl shirks from the publicity she fears will result if she makes known the full story of her abduction and gang rape, following the revenge which was meted out to her assailants.
A man found dead in a burnt out car at the foot of a cliff is presumed to be the owner, James Bannister. But further evidence points to Bannister still being alive, and detectives gradually unravel an insurance fraud which ends in another murder.
When Homicide detectives probe the underworld to investigate the murder of a prostitute, they find the dead girl's friends and accomplices all fear for their own lives. Their investigations are complicated by an obvious crank with a passion for reforming people.
When con-man Hal Dunstan gets over-confident, a chance encounter with a prowler in a graveyard triggers off more than he can cope with.
When prominent Melbourne solicitor Gerald Marquard is killed, detectives connect his death with the disappearance of an important forged document. They concentrate on two suspects: one a well-known confidence trickster, the other a young German migrant, Horst Schumann.
The murder of a baccarat king leads to an arrest, a trial and also an acquittal, because the charged man has a watertight alibi. But time, mistrust and wagging tongues force the killer to strike a second time - and to meet again with a homicide detective who has retained a keen memory of the original crime.
Sen. Det. David Mackay, recently demoted from Sergeant due to a report by Det. Sgt. Bronson, joins the Homicide squad. Mackay is in trouble immediately when he is caught breaking into a shop. Fraser is promoted to Senior Detective and transferred to another squad.
A young mother is murdered and her small daughter is missing. Police and trackers comb rugged country for the killer, and question relatives about the little girl whose disappearance is obviously connected to her mother's death.
A girl en route to her city office sees a dead man lying on a rooftop. During the subsequent investigation Homicide detectives uncover some shady dealings with her father's business.
A bookmaker is brutally robbed and murdered, and Homicide detectives suspect a group of punters led by smooth-talking Johnny Parke. Their search brings them to further violence when tension flares up between the suspects.
A miserable relationship develops between two European middle aged migrants who have a mutual love of music. Both are impoverished, and behind her refusal to marry him is a tragic secret - she has an incurable illness. Their relationship grows more and more hopeless and they decide to kill themselves - the man then shoots her and tries to poison himself, but fails. Rather than tell police about their pact, the man makes up a story about a crime of passion.
When a body is washed up on St Kilda beach, Homicide detectives discover that the victim was involved in the smuggling of narcotics.
The prompt rescue by Sen. Det. Mackay of a man who is nearly killed by a train leads to an unexpected clue and a tragic reason behind the death of a woman.
A policewoman joins the Homicide detectives to probe a death which takes them into the realm of strange witchcraft rites.
Three young women die and investigations lead Homicide detectives into the field of psychiatry, and to a mentally deranged man who has become a criminal through misfortune, and whom they fear will kill again.
A woman dies a violent death, and some stolen diamonds are missing. A link between the two crimes provides Homicide detectives with several leads. The chase is on in earnest when their prime suspect flees from his own accomplices as well as the police.
A vicious and ruthless underworld character fatally wounds a young policeman after being disturbed trying to steal a car. There are witnesses, but all fail to identify the Homicide detective's prime suspect. It is a silent witness that finally catches him out - a vital piece of evidence left at the scene of the crime by the murderer himself.
Christopher Lodge receives a shock when an undertaker calls to collect his body. His fear mounts when a wreath is delivered, and detectives are called in to investigate his 'murder'.
The victimisation of innocent and unsuspecting children horrifies the inhabitants of a quiet country town. The cruel death of a young child leads police to a tragic psychopath.
Returning home from an all-night party, a woman under the influence of alcohol makes a grim game of driving her car at a male friend - until she eventually hits him. Panic-stricken, she rushes off into more trouble. Before long her own life is endangered by someone who wants to keep the night's events secret for a very good reason.
Gil Slade, a conceited bully, braggart and brutish lout, kills a man for no reason other than that he made Slade look foolish. None of his neighbours will inform on him, and when one finally does go to the police Slade retaliates with further violence.
A man, who is convinced that he has every right to deceive and defraud others, sets up a rest home for old people. But the Homicide squad takes an interest when an elderly female resident is murdered without any apparent motive.
An elderly woman is murdered when she disturbs a thief who has broken into her home. Homicide detectives realise quite early in the piece that someone is trying to cover up for the killer - but it's such a naive attempt that it helps the police far more than it does the murderer.
A young girl is lured to her death when she answers a newspaper advertisement, and Policewoman Helen Hopgood assists the Homicide detectives in tracing the murderer.
Sgt. Bronson's wife, Pat, is witness to a despicable attack on a cripple by three youths. Her own life is threatened by their ruthless leader, Billy Saunders, who tries to stop her identifying them.