As in a Looking Glass.

Scandalous European temptress Lila Despard, travels to America to escape her lover, criminal Jack Firthenbras. On the ship, she meets Andrew Livingston, a United States Navy planner, and Senator and Mrs. Gales. Her new friends host a party for Lila in Washington, D.C., where a spy named Dromiroff threatens to expose her past unless she steals Andrew's secret naval plans. In order to secure the papers, Lila makes love to Andrew, but the plan backfires when she falls in love with him.