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

The murder of a suburban teenager leads investigators into the dark world of punks and skinheads.

When a Montreal co-ed is murdered, and no suspect is found, a criminal profiler sheds new light on a dark crime.

When women are being drugged and sexually assaulted, a forensic toxicologist wrestles with his own integrity to nail the disgusting culprit.

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

Just as a woman is about to be cremated after a traffic fatality, a blood spatter analysis is needed to determine if it really was an accident.

When a vivacious cheerleader is murdered and sexually assaulted, DNA profiling helps investigators exonerate the innocent and convict the guilty in a 13-year-old case.

A man drives 20 minutes along a super-highway and then murders his mother-in-law, allegedly while sleepwalking. Can a sleep expert determine if this is a bogus defense?

Dr. Cheryl Wagner treats her first ever female patient with AIDS. Only days later she treats a second woman with the same affliction...then, a third. Incredibly, all are infected by the same man. At Dr. Wagner's insistence, public health officials issue a restraining order, forbidding the man from having sex. He then infects another woman

In this special one-hour episode, a labour dispute at the Giant gold mine in Yellowknife has the town divided. After months on strike, tensions reach a boiling point when replacement workers are brought in and union members begin crossing the line. When nine miners are killed down in the mine, forensic experts establish the explosion is deliberate - this is murder!

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

When the skull of a young woman is unearthed, it leads police and scientists to a 50 year old murder mystery.

Accident, murder or suicide? Forensics tell the gruesome tale of the Solar Temple cult and their belief that death by fire would lead to rebirth on the planet Sirius.

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.

Maggots that have eaten away the face of an unknown victim could turn out to be the key to solving the brutal murder.

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?

The crooks are their own worst enemies in this absolutely perfect crime gone wrong.

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

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.