Miss Pinkerton
(Book)

"When Herbert Wynne is found dead, with a bullet in the forehead, the obvious explanation is murder. But how could it be when the only possible suspect is Herbert's frail Aunt Juliet? Posing as Juliet's private duty nurse, the Homicide Bureau's Hilda Adams develops grave suspicions. Why is the maid terrified of every dark corner? And if a mad killer is on the loose, who will be targeted as the next victim?"--FantasticFiction.com.

It appears the dissolute nephew of elderly Juliet Mitchell committed suicide-- he died by gunshot in his locked bedroom. But Inspector Patton has his doubts about Herbert's death, and enlists the help of nurse Hilda Adams at the Mitchell mansion. As his agent in the inside, he calls her "Miss Pinkerton" and her duties are twofold: to care for the traumatized and bedridden Juliet, and to find out who really pulled the trigger. But the Mitchell family's secrets are as dark as the shadows in the creaking old house. It's up to Miss Pinkerton to solve the case... if she can survive the night. -- adapted from Amazon.com info