The set also featured an extensive drainage system, which was built to accommodate the rain sequence that took place in the movie.
The Greenwich Village apartment setting was filmed at Paramount Studios on a gigantic indoor set. The set also featured an extensive drainage system, which was built to accommodate the rain sequence that took place in the movie. In addition, a complex lighting system was constructed to pattern natural lighting effects for both the day and nighttime scenes. The effect is a slow-burn murder mystery that continues to chill audiences to this very day.