The Finnish designer Henrik Wahlforss had a flourishing career in industrial design and innovation in the 1970s. In 1980, he decided, however, to leave his career to write a book. Not any book; he wanted to write his prediction about the future, which became for him a life-long project. Combining archive material, interviews, and dramatizations, the film Tidresenären brings the viewer closer to Wahlforss’s fascinating life and predictions.