Gemma Lincoln wakes up one morning to discover her clothes laid out as an effigy of a woman with a slashed throat and crotch. As the 30-something proprietor of a successful security and surveillance business, Gemma decides to video the effigy and compare notes with her friend, Detective Sergeant Angie MacDonald. Angie has a similar video - except the victim is a real woman. Meanwhile, Gemma s father, psychiatrist Dr Archie Chisholm, is due to be released from prison, where he has been held for many years for the murder of Gemma s mother. Gemma has always believed her father innocent, and has assembled evidence to prove it. Her sister Kit, however, is convinced of his guilt, and the relationship between the sisters has been deeply troubled since the time of the murder. As the serial killer s violent crimes escalate, the trauma of 30 years before resurfaces, and Gemma and Kit find themselves drawn ever-deeper into a situation they never thought possible, where the horrors of past and present become increasingly entwined ...

Gemma Lincoln is trying to discover who has been raping and murdering girls from Kings Cross. Her own business is being sabotaged and her boyfriend is getting up close and personal with a beautiful woman. Gemma struggles to pull her life together in increasingly sinister circumstances.

When Private Investigator Gemma Lincoln agrees to investigate a missing student from exclusive 'Netherleigh Park Ladies' College', she finds herself drawn into a double murder case surrounded by a wall of silence. Gemma's best friend Detective Sergeant Angie McDonald helps, but Angie is overworked, unsupported by an incompetent superior officer and crazy in love. Gemma's other cases include a woman whose ex-husband still terrorises her at night, a grieving widower who wants to know what happened to his late wife's remains, a young woman who wants DNA material from a famous sporting figure who may be her father and the elderly mother of Gemma's piano teacher, who swears there's 'an animal' in her second storey flat and wants a surveillance camera installed to prove it. Every instinct warns Gemma that she herself is under surveillance.

Gemma Lincoln has to find the murderer of a police superintendent. But will the Force close around her? Is a cop the killer? Private Investigator Gemma Lincoln is back. A brother and sister-in-law are shot dead in the hallway of their family home. The dead man, Bryson Finn, was a police superintendent; his bereaved wife, Natalie Sutherland, is a former detective. Was this a case of cop killing cop? Natalie hires Gemma to find out, fearing that the Force will close ranks to keep it quiet. That might not be the smartest thing Ms Sutherland has ever done... While trying to solve this bloody crime, and the many minor skirmishes that help pay the bills for a PI, Gemma has to make tough decisions about her own life. Is she in love with Steve? Will she tell him about the baby? Can she be a mother on her own?

A vampire stalks the streets, attacking beautiful young women; some are murdered days later, others aren't touched again. Gemma Lincoln, PI, begins to see a pattern - but can she convince the authorities to take action before another life is lost? Especially after her son vanishes?