A robber escapes from prison with a single objective in mind: to track down his former cellmate, a serial killer who intends to pin his crimes on him. A cop is sent after the robber who, despite his best efforts, soon becomes Public Enemy Number One. As the protagonists are driven to their limits, it becomes increasingly unclear who is the hunter and who is the prey.

An American biologist attending a conference in Berlin awakens from a coma after a car accident, only to discover that someone has taken his identity and that no one, not even his wife, believes him. With the help of an illegal immigrant and a former Stazi agent, he sets out to prove who he is and find out why people are trying to kill him.