An innocent Londoner is wrongly accused of murdering seven women by a tenacious policeman and pursued through the city streets by a vengeful mob. Alfred Hitchcock's silent thriller, starring Ivor Novello, June Marie Ault and Arthur Chesney.

London. A mysterious serial killer brutally murders young blond women by stalking them in the night fog. One foggy, sinister night, a young man who claims his name is Jonathan Drew arrives at the guest house run by the Bunting family and rents a room.