When the ambitious young Ina fails the exam for admission to a senior police career, an offer from her former trainer Theissen comes just in time: the ex-policeman has founded a security company that advises a large Eco company in the search for an information leak. When it turns out that the company's founder, of all people, is betraying the company's secrets, Theissen resorts to a dirty trick in order to kill the man; and Ina becomes the scapegoat.