The businessman Bernhard Fredersen, who has been blinded by an eye disease, shuts down his long-established company in Hamburg and moves to Pretoria to spend his retirement years with his wife Agnes. While on the journey, Agnes is seen by the treacherous Eugen Schliebach, who knows, that she once had an affair with his late boss. Schliebach wants to blackmail Agnes to become his mistress and when she refuses to do so, he goes to Fredersen tells him everything.