this be one of those movie that keep you watch despite a sloppy screenplay why and for god sake and do korvo ( jose ferrer ) first attempt to gain control of ann sutton ( gener tierney ) mind in the middle of a cocktail party albeit in an empty room into which anyone could have wander and why and when tierney discover the body of ferrer ex lover and do two guy turn up from nowhere and call the police . add to this richard conte a arguably the most unconvincing psychiatrist in screen history and we begin to see the size of the problem . nevertheless tierney keep u watch a ferrer be effective a the quack korvo .