Lorac, the pen name of the British writer Edith Caroline Rivett.

[1][2] It is the thirty fifth in her long-running series featuring Chief Inspector MacDonald of Scotland Yard.

It was published in the United States by Doubleday under the alternative title of I Could Murder Her.

[3] In a manor house in the English countryside Muriel Farrington rules over her various grown children like a martinet, keeping them all in line whenever anyone threatens to dissent from her.

When she is found dead, MacDonald is called in to cast his eye over several possible culprits.