Joseph O'Loughlin Books in Order

Clinical psychologist Joe O'Loughlin seems to have a perfect life until he is asked to consult on a brutal murder and recognises the victim as a former colleague. As his lies to the police mount and a troubled patient drifts toward violence, Joe himself becomes the prime suspect.

Homicide detective Vincent Ruiz is pulled from the Thames with a gunshot wound and no memory of how he got there. A photograph of a girl missing for three years sends him and psychologist Joe O’Loughlin into a dangerous investigation of a murder conviction that may be wrong.

Psychologist Joe O’Loughlin confronts Gideon Tyler, a predatory man able to manipulate people into taking their own lives. As Tyler’s threat closes in on Joe’s family, Joe must match wits with an adversary who turns despair into a weapon.

Fourteen-year-old Sienna Hegarty turns up at the home of Joe O'Loughlin's estranged wife, exhausted and covered in blood. Her father, a former police officer, is soon found murdered and everyone assumes Sienna is guilty. Joe, convinced she is hiding a different kind of trauma, risks everything to uncover the truth.

When ex-detective Vincent Ruiz rescues a young woman from a violent boyfriend, he wakes the next morning to find he has been expertly robbed. Tracking the thief leads him to a tortured corpse, a missing banker and a journalist in Baghdad following billions in vanished reconstruction funds—threads of a conspiracy stretching worldwide.

Three years after best friends Piper Hadley and Tash McBain vanished, a couple is murdered during a savage blizzard in the farmhouse where one of the girls once lived. As police close in on an unstable suspect, Joe O'Loughlin is convinced at least one girl is still alive—and running out of time.

Marnie Logan’s husband has been missing for a year, leaving her buried in debt and fear. Convinced she is being watched, she turns to psychologist Joe O'Loughlin for help. When Joe discovers a scrapbook her husband compiled about her past, it reveals a pattern of death that points to someone who has been orchestrating her life from the shadows.

When a former student calling himself the 'Mindhunter' sabotages a double-murder investigation, Joe O'Loughlin is reluctantly drawn back into profiling. A mother and daughter have been killed in a remote farmhouse, their deaths echoing a series of bizarre assaults. As Joe closes in on the killer, his own family is placed in jeopardy.

When Joe O'Loughlin’s respected surgeon father is viciously attacked, Joe rushes to the hospital expecting to find his mother at his bedside. Instead a stranger is keeping vigil and insists she is William’s other wife. Investigating his father’s secret life, Joe uncovers long‑buried betrayals and a motive for attempted murder.