When Miss Temperance Flowerdew is grabbed and put on a Chicago-bound train by a stranger, Mr Gilbert Cavendish is sent to rescue her. Knowing only he is rescuing a missing woman, he's astonished to find she is his good friend Temperance. But before they can discover why she was abducted, they’re seen alone together by a New York society matron. Gilbert proposes marriage in order to save their reputations—except Temperance will have none of it. But when it becomes clear the situation in Chicago has escalated into a threat on her life and followed her to New York, accepting Gilbert’s help in solving the mystery may lead to more than she ever imagined.