The hero is the master of disguises , the heroine, a daughter of an earl. He makes puppy eyes at her at balls while in said disguises, wishing to have her. But she is too good for him! He is just a lowly spy! So of course he climbs into her window one night and starts an affair! Duh. No one can see them, so it's a secret! His mighty wang fits perfect with her magic hoo-hoo and love blossoms. He is a spy! He loves her! She is nobility and loves him also until she finds out he is a spy. He is a liar! But she loves him! Yes! No! Yes No! Yes! And they live happily ever after.