Story Structure — 6 Plot Phases
A Murder Interrupts Routine
Police headquarters is occupied by reporters, minor criminals, and Wales's unsuccessful search for clients. Bates's shooting death abruptly takes precedence, and Stevens and Boggs receive the case.
Key Events
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Police Headquarters Routine — Reporters, minor criminals, and Wales fill the headquarters during an ordinary day. Characters: Manny Wales, Muggs Manton
Location: Police headquarters
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Muggs Becomes the Catch — Suspected bank robber Muggs initially draws the attention of the headquarters. Characters: Muggs Manton, Manny Wales
Location: Police headquarters
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Bates Found Shot — Bates's shooting death takes priority over the other activity at headquarters. Characters: Gordon Bates
Location: Bates's penthouse
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Detectives Take the Case — Stevens and Boggs are assigned to investigate Bates's murder. Characters: Lt. Jim Stevens, Sgt. Boggs
Location: Police headquarters
The Wintons Under Suspicion
Lou's former relationship with Stevens and her broken engagement to Bates complicate the investigation. Jack's intervention explains a possible link between the Wintons and the presumed murder weapon.
Key Events
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Lou Named a Suspect — Stevens learns that his former girlfriend Lou is a chief suspect. Characters: Lt. Jim Stevens, Lou Winton, Gordon Bates
Location: Police headquarters
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Jack Rescues Lou — Jack beats Bates and gets Lou out after Bates attempts to assault her. Characters: Lou Winton, Jack Winton, Gordon Bates
Location: Bates's apartment
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Fingerprints Complicate the Case — Jack's confrontation with Bates could explain his prints on the presumed murder weapon. Characters: Jack Winton, Gordon Bates, Lt. Jim Stevens
Location: Bates's apartment
Evidence Rewrites the Timeline
Van de Water's findings identify an antique dueling pistol and move the estimated time of death to between 11 PM and midnight. The discovery of cocaine in Bates's system further complicates the account of the killing.
Key Events
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Dueling Pistol Identified — Forensics identifies an antique dueling pistol and notes its twin had initially been overlooked. Characters: Dr. Van de Water, Lt. Jim Stevens, Sgt. Boggs
Location: Forensics laboratory
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Time of Death Revised — Analysis places Bates's death between 11 PM and midnight, later than first estimated. Characters: Dr. Van de Water, Lt. Jim Stevens, Sgt. Boggs
Location: Forensics laboratory
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Cocaine Found in Bates — Forensic analysis finds a heavy dose of cocaine in Bates's system. Characters: Dr. Van de Water, Gordon Bates, Lt. Jim Stevens
Location: Forensics laboratory
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Anderzian Studies the Safe — The alleged rug importer shows unusual interest in the contents of Bates's safe. Characters: Anderzian, Gordon Bates
Location: Bates's penthouse
The Safe and the Blackmail
Anderzian's interest in Bates's safe leads investigators to evidence of blackmail and another woman's violent encounter with Bates. The Wintons account for their whereabouts after 10 PM and are cleared.
Key Events
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Blackmail Evidence Uncovered — Opening the safe reveals evidence that Bates made his wealth through blackmail. Characters: Anderzian, Gordon Bates, Lt. Jim Stevens, Sgt. Boggs
Location: Bates's penthouse
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Another Woman's Account — Investigators learn another woman fought with Bates and knocked him unconscious with a statuette. Characters: Gordon Bates, Lt. Jim Stevens, Sgt. Boggs
Location: Police headquarters
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Wintons Account for Their Whereabouts — The Wintons account for their whereabouts after 10 PM and are eliminated as suspects. Characters: Lou Winton, Jack Winton, Lt. Jim Stevens
Location: Police headquarters
A Second Death and an Arrest
Wales finds Muggs dead, adding a second killing to the investigation. Invisible ink on the recovered letters identifies Anderzian as Bates's blackmail partner, and the police arrest him.
Key Events
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Muggs Found Dead — Wales discovers Muggs's body with his throat slashed. Characters: Manny Wales, Muggs Manton, Lt. Jim Stevens
Location: Janitor's closet
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Invisible Ink Exposes Anderzian — Testing the recovered letters reveals Anderzian's connection to Bates's blackmail. Characters: Anderzian, Lt. Jim Stevens, Sgt. Boggs
Location: Police headquarters
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Anderzian Arrested — The building is sealed and Anderzian is arrested. Characters: Anderzian, Lt. Jim Stevens, Sgt. Boggs
Location: Police headquarters
The Valet's Secret
The midnight safe job explains Anderzian's connection to Muggs but does not reveal who shot Bates. Stevens confronts Horton with his knowledge of Horton's marksmanship and learns that Horton shot Bates after Bates revived and fired at him.
Key Events
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Midnight Safe Job Explained — Anderzian had hired Muggs at midnight, then removed him after finding Bates already dead. Characters: Anderzian, Muggs Manton, Gordon Bates
Location: Bates's penthouse
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Stevens Questions Horton — Stevens privately tells Horton he knows about his British Army rifle skills. Characters: Lt. Jim Stevens, Horton
Location: Police headquarters
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Horton's Account of the Shooting — Horton tried to destroy the blackmail material; after Bates revived and fired, Horton shot him. Characters: Horton, Gordon Bates, Lt. Jim Stevens
Location: Bates's penthouse
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Horton Wipes the Weapon — Horton wiped his prints from the gun and returned it to its display case. Characters: Horton, Gordon Bates
Location: Bates's penthouse
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Stevens Keeps the Finding Quiet — Stevens regards the shooting as self-defense and sees no reason to publicize it. Characters: Lt. Jim Stevens, Horton
Location: Police headquarters