Hartwell disguises himself as Startup, and the Nurse unknowingly leads him to Frances's room. Frances recognizes him, but pretends to believe that Hartwell is Startup, and pretends likewise to be receptive to his suit.
Startup impersonates Hartwell, and the Nurse inadvertently guides him to Frances's chamber. Frances identifies him, yet pretends to believe he is Startup, and similarly feigns interest in his offer.