A young Jewish girl's murder in war-torn London ignites a desperate investigation when official channels prove indifferent. Asta Thundesley, a determined crusader, takes on the case, meticulously gathering suspects for a revealing dinner party. Meanwhile, Detective Turpin follows procedure, only to find himself ensnared in a labyrinth of dead ends. The narrative navigates the perils of wartime London, highlighting the stark contrast between those who seek justice and the indifference of circumstance.

Gerald Kersh's "Prelude to a Certain Midnight" is recognized for its atmospheric portrayal of wartime London and its intricate mystery. The narrative's strength lies in its depiction of contrasting investigative methods, with Asta Thundesley's unconventional approach set against Detective Turpin's adherence to protocol. The novel explores themes of justice and indifference, offering a grim yet compelling look at the human condition during a period of intense conflict. Readers often note Kersh's sharp prose and his ability to create a palpable sense of place and tension.