A geneticist and feline expert match a pet cat's DNA to the hairs on the jacket of a murdered woman.

On Remembrance Day, in a wealthy suburb, a German matron is found beaten and brutally murdered. An autopsy reveals that the real cause of death is that she's been shot in such a way as to conceal this fact. Firearms expert Sam Barbetta inspects the bullets and determines that the murder weapon was homemade - the bullets can't be traced!

A young woman is found dead with a bite mark on her body. Can a forensic dentist help them track down her obsessed killer?

Two men who kill a gun shop owner and steal a cache of handguns begin a crime spree that terrorizes a city. How will science turn the weapons back on the killers?

A headless corpse baffles police and shocks a community. It is up to an astute pathologist to lead investigators to the brutal murderer.

For twenty five years a woman receives the sympathy of family and friends for the tragic sudden deaths of each of her five small children. Can good forensic science expose bad medical science to solve an unthinkable crime?

A man identified as a serial killer is tried in a case of homicide by alcohol poisoning.

A young Asian student is raped and murdered in the apartment she shares with her sister. The killer has left a minute trace of himself in the apartment. His identity is a complete mystery. Who could have killed this innnocent girl and why? Forensic fingerprinting points to a suspect but it will be tears that close the case.

Two teenage girls are ambushed by a man wielding a baseball bat. He wants to party. The girls resist but in the struggle, one girl is beaten and left in a coma and the other is raped and murdered, her body dumped in the nearby river. As police mobilise their investigation, the killer taunts them by telephone. For months, the killer eludes the police and terrorises the town.

On Victoria Day as fireworks are going off, someone is on a killing spree. The next morning, three prostitutes are found shot dead. One is a transvestite, one is a transsexual and the third is a woman. The bullets from each killing prove to come from the same gun.

Ronald Dalton has an idyllic life - a loving marriage, three beautiful children and a solid career in banking. But in one night, all that is ripped away from him. His wife dies under unusual circumstances and the forensic pathologist says it is murder by strangulation.