Sudden Fear - Irene's Apartment
Myra's new-found happiness comes crashing down when she overhears Lester and Irene scheming to kill her for her money - captured by her dictating machine that had been inadvertently left on.
Then ... After she gets over the shock her playwriting skills kick in and she begins to formulate a plan to beat them to it, requiring her to gain entry into Irene's apartment. Below, she makes her way there.
Then ... Myra walks up from Hyde Street and heads for Irene's door at the rear of the apartment building. In the distance Greenwich Street climbs up Telegraph Hill to Coit Tower.
... and Now, the hedge has been extended up the slope from the street and a wrought iron fence has been added at far right to create a secure parking area for the tenants.
Then ... She uses a copy of Irene's door key to gain entry. This doorway was most likely part of the studio set used for the apartment interior scenes.
Inside the apartment Myra finds some monogrammed note pads and a gun, soon to be used in her punitive strike.