The Spiral Staircase (1946)

Few thrillers have ever wrapped terror in such beauty as Robert Siodmak's The Spiral Staircase (1946). Adapted from Ethel Lina White's novel "Some Must Watch", it is one of the crown jewels of the "old dark house" tradition. 

The story takes place in 1916 in a quiet New England village that is shaken by a killer who is stalking women he deems "imperfect." Inside the great Warren mansion, the latest potential target, Helen Capel (Dorothy McGuire), a young mute servant girl, tends to her bedridden employer Mrs. Warren (Ethel Barrymore), unaware that danger lurks within the corridors of the house she calls home. 

Director Robert Siodmak, fresh from his work at Universal, infused the picture with the eerie elegance of German Expressionism. His camera glides through the Warren house teasing us with glimpses of views through mirrors and banisters, as though we were the unseen watcher. The most iconic frame of the film is undoubtably his close-up of the killer's eye and its reflection of the titular staircase. 

Dorothy McGuire gives a remarkable delicate performance as Helen. One forgets her muteness entirely, instead we sense her vulnerability and every thought of fear through her expressions alone. The grand old dame Barrymore gives a barnstorming turn as the sharp-tongued ailing dowager, a role which earned her an Academy Award nomination. George Brent and Gordon Oliver are each cloaked in just enough mystery to keep the viewer guessing, while Kent Smith lends a touch of romance to the proceedings as the young Dr. Parry who is anxious for Helen to regain her speech. The always appealing Rhonda Fleming costars as Mr. Warren's secretary; Elsa Lanchester brings some tipsy humor to the household gloom, and Sara Allgood and Rhys Williams round out the cast of servants. 

Visually, the film is a feast. Nicholas Musuraca's cinematography - that deep-focus chiaroscuro he perfected in Cat People and The Seventh Victim - breathes life into Albert D'Agostino's rambling and gloomy Victorian sets. 

The mystery itself may not stump many modern viewers, but The Spiral Staircase was never about surprise...it is about suspense - that exquisite tightening of the nerves as Helen's silence grows unbearable. In its refinement and restraint, The Spiral Staircase anticipates the psychological thrillers of decades to come and remains a Gothic masterpiece preserved on celluloid.