The Man Who Wasn't There is a 1937 mystery detective novel by Anthony Gilbert, the pen name of British writer Lucy Beatrice Malleson.

[1] It is the second in her long-running series featuring the unscrupulous London solicitor and detective Arthur Crook.

[2] Marjorie Hyde, a beautiful actress, stands accused of murdering her very jealous husband Major Hyde by poisoning his glass of port after dinner.

However Arthur Crook and his associates set out to clear her name.

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