Driven by curiosity, several top students from the University of Chicago Hospital planned a crazy experiment to explore the mystery of death. They took turns lying in the operating room and entered a state of death, and then other guarding classmates revived them. This thrilling and exciting death shuttle began step by step in a dark night. Nelson (Kiefer Sutherland), the first to be tested, met the boy who died because of his insult after "dying". After Nelson came back to life, although all his senses became more acute and sensitive, he fell into a deep nightmare; the second person to accept the experiment was the lustful Joe (William Baldwin), who saw various pornographic scenes and met the girl he had abused; then, David (Kevin Bacon) also accepted the experiment, and he delayed the death experiment to two minutes; the female student Rachel (Julia Roberts) relived her father's suicide during the time of death. After experiencing the world of death, those lingering memories of the past began to invade everything they had.