Mr. Marble

Mrs. Marble

Husband and wife, but their relationship is strained by financial desperation and moral decay.

Annie Marble

Father and daughter, with Annie increasingly aware of her father's dark secrets and instability.

Saunders

Employer and employee, with Saunders serving as Mr. Marble's clerk and unwitting accomplice.

Collins

Collins is a blackmailer and antagonist who threatens to expose Mr. Marble's crime.

Mr. Henderson

Mr. Henderson is a business associate or creditor, representing financial pressure on Mr. Marble.

Dr. Atkinson

Dr. Atkinson is a neighbor and potential future son-in-law, viewed with suspicion by Mr. Marble.

Jim Medland

Jim Medland is a former friend or associate whom Mr. Marble murders for financial gain.

Netley

Netley is a subordinate or colleague involved in Mr. Marble's shady financial schemes.

Evans

Evans is a business contact or detective figure who becomes suspicious of Mr. Marble's activities.

Mrs. Marble

Husband and wife, but their relationship is strained by financial desperation and moral decay.

Mrs. Marble

Husband and wife, but their relationship is strained by financial desperation and moral decay.

Annie Marble

Father and daughter, with Annie increasingly aware of her father's dark secrets and instability.

I

Consumed by debt and despair, he obsesses over his finances and whisky, and rudely questions his nephew while eyeing his money.

II

Shows paranoid behavior, repeatedly checks the backyard, pays off Evans, drinks heavily, and snaps at Annie.

III

Tortured by guilt and fear of discovery; obsessively plans to buy the house to protect the buried body; drinks heavily and reads crime literature.

IV

Shows signs of worry and drinking at the bank; conceives a risky foreign exchange speculation; approaches Saunders to execute his plan.

V

Suffers from paranoia and guilt, obsessively reads crime books, and anxiously monitors the franc's value.

Chapter VI

Returns home buoyant after financial success, but becomes paranoid and violent when his wife confronts him about his secret.

VII

Now wealthy from speculation, he resigns from the bank, accepts a new job, buys the house, and forces his wife to spend money on lavish furniture and clothes.

Chapter VIII

Confronted by John, fears gossip and police investigation, refuses to hire a charwoman, oversees delivery of new furniture, meets Madame Collins.

IX

Obsessed with guarding the backyard, drinks heavily, and is determined not to leave the house unguarded even for a holiday.

The Intrigue of Madame Collins

Consumed by paranoia during dinner with Madame Collins, haunted by the buried body and the threat of exposure.

Chapter XI

Obsessively guards the garden, drinks to avoid thoughts of the murder, and realizes his wife knows the truth when he sees her reading about cyanide.

XII

Drinks heavily, lives in terror of the gallows, disturbed by Winnie's bustle, gives her a £100 cheque.

XIII

Anxious about his wife's potential independence; tries to be affectionate; blackmailed by Madame Collins; gives her £300.

XIV

Experiences a brief respite from paranoia, feeling fondness for Annie, but relapses into drinking and despair after receiving a blackmail letter from Madame Collins.

Chapter XV

Struggles to nurse Annie while paranoid about Dr. Atkinson's scrutiny and the secret in the garden; exhausted and fearful.

XVI

Discovers his wife dead; his suspicious behavior and possession of cyanide lead to his conviction for murder.