A transplant surgeon, after suffering a car accident that costs him his arm, is given a second chance when he is offered an arm transplant. However, what seems like a miracle turns into a nightmare. His new hand, which belonged to a serial killer, begins to have a life of its own, acting independently and leading him to confront a darkness he never imagined. As his personal life falls apart and his sanity starts to waver, he realizes that his severed arm is not just a mere appendage, but a literal connection to the deceased killer's criminal mind.
As the protagonist struggles to regain control of his body and his life, he embarks on an investigation to uncover the truth about his donor's past. With the help of his partner and a forensic friend, he is drawn into a disturbing world of secrets that threaten to destroy everything he loves. Desperation leads him into increasingly dangerous situations, facing an unrelenting hunt that blurs the line between life and death.
This unsettling thriller explores themes of identity, loss, and the nature of evil. As the plot unfolds, we are left questioning: is the body the key to uncovering the truth or merely an instrument of destruction? With an unexpected twist at the end, it leaves us pondering the choices we make and the marks they leave on us.