Fact1: killer approaches woman named Later night, Fact2: Creeper When climbs fire escape of city tenement building to escape approach, Fact3: Helen encourages him to hide in bedroom, Fact4: general store delivery boy named listens to radio report about Creeper 's murders next day, Fact5: Captain M.J. Donelly and Lieutenant Gates at receive complaints from mayor 's office about failure to arrest Creeper police station
Output: The police investigate a string of murders committed by the Creeper Rondo Hatton, a mysterious killer with a hideously disfigured face. The Creeper attacks and murders Professor Cushman John Hamilton, a professor from the nearby Hampton University. Later that night, the killer approaches a woman named Joan Bemis Janelle Johnson in front of her home and identifies himself as Hal Moffet. Joan screams hysterically at the sight of him until he is driven to kill her. When police cars approach, the Creeper climbs the fire escape of a city tenement building to escape and enters the apartment of Helen Paige Jane Adams, a blind pianist. Unable to see the Creepers deformed face, Helen is not afraid of the intruder, even when he admits to fleeing. When police officers knock on her door, failing to identify themselves, Helen encourages him to hide in her bedroom, where he escapes through the window. The next day, a general store delivery boy named Jimmy Jack Parker listens to a radio report about the Creepers murders. The cantankerous store owner Mr. Haskins Oscar OShea arrives with a handwritten letter slipped under the door, requesting groceries be delivered to a nearby dock. Jimmy brings the groceries to the dock and leaves them at a door, where the Creeper takes them into his hideout. But, when Jimmy tries to spy on him through a window, the Creeper sneaks up on Jimmy and kills him. Meanwhile, at the police station, Captain M.J. Donelly Donald MacBride and Lieutenant Gates Peter Whitney receive complaints from the mayors office about their failure to arrest the Creeper, but they deflect the blame. The two officers then get a call about the missing delivery boy and head to the dock to investigate. The Creeper sneaks out and escapes while Donelly and Gates infiltrate his hideout and discover Jimmys corpse. Donnelly also finds a newspaper clipping with a man named Hal Moffet and two of his friends, Clifford Scott Tom Neal and Virginia Rogers Jan Wiley, during their college days. The police visit Clifford and Virginia, who are now married and wealthy. Clifford tells the officers during college, Hal was a handsome college football star who competed with Clifford for Virginias affections. One day, while helping Hal prepare for a chemistry exam, a jealous Clifford deliberately gave him the wrong answers, resulting in Hal being asked by Professor Cushman to remain after class for extra work. While working on a chemistry experiment, Clifford walks by the window with Virginia to boast. Furious, Hal hurls a beaker to the ground, accidentally causing an explosion that disfigures his face. Donnelly speculates that Hal is the Creeper, and that he killed Professor Cushman and Joan because he holds them partially responsible for his accident. Meanwhile, the Creeper goes to a pawn store to buy a brooch for Helen, and kills the pawnbroker Charles Wagenheim following a fight. He later brings the brooch to Helen, who he realizes for the first time is blind. Hal learns she needs 3,000 for surgery that would restore her eyesight. When Helen tries to touch his face, Hal angrily storms out. He then goes to the Scott residence and demands money from Clifford and Virginia, whom he blames for his disfigurement. Clifford draws a gun and shoots Hal twice in the stomach, but the weakened Hal manages to strangle Clifford to death before escaping with Virginias jewels. He brings them to Helen, who is concerned about Hals injuries, but he flees before she can learn he is shot. Helen brings the jewels to an appraiser, who recognizes them as having recently been reported stolen. Donelly and Gates bring Helen into the station, where they inform her Hal is the Creeper and accuse her of harboring a murderer. Reluctantly, she agrees to help them capture him. The next day, the newspapers run stories about Helen cooperating with police, which infuriates Hal. Feeling betrayed, he sneaks back into her apartment and finds her playing the piano. Sneaking up from behind, Hal is about to strangle her when the police seize and arrest him. The film ends with Donelly and Gates assuring Helen she will get the operation she needs.