A groundbreaking medical thriller by Robin Cook that helped define the modern medical-thriller genre. The story follows Susan Wheeler, a talented medical student at a prestigious Boston hospital, who becomes alarmed when several healthy patients unexpectedly fall into irreversible comas after undergoing routine surgical procedures.

As Susan investigates the mysterious cases, she discovers that the incidents are far from accidental. Her search for answers uncovers a horrifying conspiracy operating within the medical system, involving greed, unethical practices, and a shocking criminal enterprise.

Facing skepticism from colleagues and increasing danger from those determined to keep the truth hidden, Susan must risk everything to expose the conspiracy before more lives are lost. Fast-paced and suspenseful, Coma combines authentic medical detail with mystery and psychological tension.

Originally published in 1977, the novel became an international bestseller and was later adapted into the film Coma.