Einer von uns beiden

One or the Other of Us
A broke drop-out blackmails a sociology professor after discovering that his dissertation was a plagiary. This action-packed film version of a “sociological thriller” set in Berlin was Wolfgang Petersen’s lead-in to a Hollywood career.
by Wolfgang Petersen | with Klaus Schwarzkopf, Elke Sommer, Jürgen Prochnow, Ulla Jacobsson, Kristina Nel Federal Republic of Germany 1974