Police officer Mathieu Durey learns that his best friend, Luke, also a police officer, tried to kill himself. Soon Durey finds out that Luke was secretly investigating a series of murders committed in different European countries. The killers somehow control the process of corpse decomposition, and their crimes are linked by satanic symbolism. In the past, all the killers survived clinical death or coma. Step by step, Mathieu uncovers the incredible truth: the criminals serve the devil, who has brought them back to life.