A loner from an early age, Thomas Quick went on to become Sweden's most notorious serial killer, openly confessing to the gruesome murders of more than 30 people. Held for decades in a psychiatric institute, Quick's confessions emerged after years working with a group of touchy feely therapists, convinced that the recovery of memories would cure patients of their criminality. In a country with a low crime rate, the nation watched with horror as Quick's confessions mounted, accounting for many of the country's unsolved murders. With testimonials from a range of people whose lives have been dominated by this story - including Quick himself - and dramatic reenactment, Brian Hill weaves a stylish noir thriller that works a treat on the big screen. What appears at first to be a tale of unimaginable evil evolves into something much more layered as Hill digs deep into the motivations behind those working closely with Quick.

Margit Norell - the woman behind the serial killer that was not there. She was a psychotherapist at Säters psychiatric clinic and supervised the psychologists and therapists in the 1990s treatment of Thomas Quick. The treatment method, based on object relations theory, focused on the development of repressed childhood memories with psychotherapy. In the case Thomas Quick argued that abuse in childhood meant that he started murdering people in adulthood. Whereupon Quick admitted one murder after another, and finally was convicted of eight murders.

Previously believed to have been a serial killer, having confessed to more than 30 murders while incarcerated in a mental institution for personality disorders. Convicted of eight of these murders. TV3 aired a documentary that exposed serious flaws with the Quick investigation.

During the 1990s, Thomas Quick confessed to one unsolved murder after another, becoming, in the words of the father of one of his alleged victims, "a ghost who ran through Scandinavia killing more than 30 people".