A bizarre murder in a city amusement park is the first in a series of horrible killings inspired by an innocent nursery rhyme. Homicide's youngest and brightest detective, Tessa Vance, is confronted by a psychopath from her past as the nursery rhyme killer prepares to strike again.

A mutilited body is found near a church, with identical markings to the victims of a serial killer 15 years ago- Thorne's first case. Experiencing a sense of deja-vu, Thorne heads the investigation. Has the killer returned, or is this a copycat crime?

Steve and Tessa investigate the death of a woman found in an area notorious for prostitutes. When they learn the woman was a pregnant nun and not a prostitute, their investigation takes a new turn.

Thorne is convinced he saw a man pushed off a building roof, but cannot locate the body at first. When the body turns up, Steve and Tessa not only have to track down the killer, but discover why the body disappeared.

Steve and Tessa investigate when a young woman is found hanging from a tree limb in a popular city park, and Tootsie's preliminary findings indicate it was not suicide.

At the opening night of his exhibition, artist Vincent Osborne's head is discovered inside his own death mask.

A gruesome discovery draws Steve and Tessa into a case that leads them into the dark stormwater tunnels of the city.

Steve and Tessa uncover a web of blackmail and obsession while investigating the murder of two business partners.

Tessa and Steve are drawn into a web of mystery and intrigue when legendary paleontologist Dr. Charlie Minogue is murdered, and his attractive assistant disappears.

A busker suffers from hallucinations while performing mime outside a train station. When he collapses and dies, Tootsie's autopsy points to poisoning.

A woman is ripped to shreds by savage dogs on the grounds of an empty house. Steve and Tessa must determine whether her death was an accident, or if the dogs were trained to kill by someone with a grudge and a vicious streak.

Steve and Tessa are called to the murder scene of a woman who had called the police twice the night before she was murdered.

Following the bizzare murder of a medical professor, Tessa and Steve must carefully interpret a series of cryptic clues left by the killer.

When a mummified body is found in an empty house, it is identified as that of Karen Diskin, the daughter of police inspector Snowy Muldoon, who went missing two years earlier.

When a food critic drops dead in a restaurant, Tessa finds there is no shortage of suspects as the critic was universally loathed and regularly received death threats.

The Klein String Quartet is a hotbed of passions and hatreds. When its founder and first violinist is found murdered, the other three members come under Steve and Tessa's spotlight.

Tessa and Steve investigate what appears to be a routine case, but soon uncover a dangerous web of blackmail and righteous fanaticism.

Tessa and Steve investigate when a psychic conducting a séance in a storm-swept house is shot dead by the ghost of the man he was trying to contact.

Abel Jago sits dead in an armchair before his valuable toy railway, on which the train of cars make their rounds. The railway engineer left a short farewell letter to his wife Ellie before committing suicide. Tessa however soon has doubts about Jagos suicide and when the autopsy results come in, it is revealed he was poisoned with cyanide.

Tessa suspects an apparent suicide is really an elaborate scam designed to cover a woman's disappearance.

When Dr. Theo Magnus, a leading cosmetic surgeon, is ambushed in his clinic and brutally murdered with a scalpel, his family and staff shed little light on the mystery.

The body of a beautiful women, victim of hit-and-run accident, is taken to the morgue. Tootsie arrives shortly afterwards to find the body missing and her new assistant murdered.

When the body of a women is found in a local dump, Tessa and Steve discover that her husband received a ransom note two days before.

A bizarre murder in a city amusement park is the first in a series of horrible killings inspired by an innocent nursery rhyme. Homicide's youngest and brightest detective, Tessa Vance, is confronted by a psychopath from her past as the nursery rhyme killer prepares to strike again.

Following the suspicious death of an elderly worker, Tessa and Steve must race against time to avert another tragedy growing from the ruins of the first.