Wanted: Someone Innocent — Margery Allingham

Pretty, impoverished Gillian Brayton is offered a well paid job as a social secretary by an old school friend, the painter and socialite Rita Fayre. The household is lively and bohemian, but the servants imply Gillian is there for mysterious reasons.

When Gillian befriends Rita's ailing husband Julian, a handsome young man who was injured in the First World War, the atmosphere below stairs becomes strange and disturbing.