After Jim Barston is mysteriously killed in Australia, his wife, Helen, lays claim to the estate of Gerald Mortimer Barston in England, asserting that her husband was the missing son and heir. In reality, Jim was the cousin of the true heir, who is also named Jim Barston. Despite having no legal proof, Helen convinces the trustees to accept her claim and is installed as mistress of the manor. Jim Barston appears and proves his identity, although Helen initially believes him to be an impostor.

Engrossed in the perfection of a new high power explosive, the husband seems to neglect his wife. She is further piqued by the introduction into their home of a man whose presence is unexplained, but who is really a Secret Service operative guarding the invention. The Government has asked that the wife be kept in ignorance. In this frame of mind the wife lends a ready ear to Aachen, who suggests that the husband be taught a lesson by the abstraction of this all-absorbing formula. Through this means he gets the formula, but in the end the Government gathers him in, and the only permanent result is a needed lesson to the innocent little traitor.

Nancy Page is a frivolous socialite until her husband Richard becomes entangled in his employer David Davenport's shady business dealings.