The Case of the Weird Sisters — Charlotte Armstrong

Agreeing to a brief visit with his young fiance's eccentric sisters--blind Gertrude, deaf Maude, and one-armed Isabel--graying millionaire Innes Whitlock becomes the victim of a series of bizarre accidents.

Millionaire Innes Whitlock and his gold-digging fiance Alice pay an unexpected call on his three odd sisters. When Innes meets with a series of near-fatal accidents. Alice suspects one of the sisters is more than eccentric . . . she may be a murderess

They were a strange trio, the three Whitlock sisters. There was Gertrude, with her imperial air. There was Maud, sloppy and loud. There was Isabel, querulous and bitter.

They seemed so apart, those three spinsters, yet their brother's fiancée was to discover the deep bond between them, the intangible link that held within it the very tangible realty of -- muder.