A thought-provoking literary thriller by Juli Zeh, first published in English in 2022 (translated from the 2021 German novel Über Menschen? Note: This Dark Matter is a separate work by Juli Zeh and should not be confused with Dark Matter). It blends psychological suspense, courtroom drama, and philosophical inquiry into a compelling exploration of free will, morality, and justice.

The novel centers on Sebastian, a successful physicist whose orderly life is shattered when he becomes entangled in a shocking crime. As investigators reconstruct the events leading to the incident, Sebastian finds himself questioning not only his own actions but also the scientific principles that have shaped his worldview.

Drawing inspiration from concepts in quantum physics, determinism, and probability, Zeh uses the idea of "dark matter" as both a scientific and metaphorical lens. The story asks whether human beings truly make free choices or whether unseen forces—psychological, social, or even physical—govern their lives.

Rather than relying on nonstop action, the novel builds suspense through intellectual tension, moral ambiguity, and psychological depth. The courtroom proceedings, shifting perspectives, and gradual revelations keep readers questioning guilt, innocence, and the nature of truth until the final pages.

Juli Zeh's elegant prose and philosophical approach elevate the book beyond a conventional crime novel, making it as much a meditation on ethics and science as it is a mystery.