Childhood friends Tommy and Tuppence meet in London after having served in World War I. Recently demobed, short of money, and with no job prospects, they decide to become adventurers for hire. Soon, they are employed by the British Government to locate a secret treaty signed before the war.
A grieving widow is invited to her late husband's family estate, but when she is forced to stay until she gives birth, she must confront whether her child is cursed or if she is losing her mind.
