Last time we saw the dynamic duo, Richard Castle (Nathan Fillion) had dug just a little too deep into finding out about Kate Beckett's (Stana Katic) personal life. In the video above, Stana tells us about the personal turn her character takes this season as we find out more about her family and her private life.
Fret not, there are still more "precarious" moments between Castle and Kate to come.
And if you haven't read the first chapter of Heat Wave on ABC.com, get going because this season centers on the release of Richard Castle's first book following Kate Beckett.
Nathan also lets slip that a Dr. Horrible sequel is already in the writing stages, though you won't see the cast performing at the Emmys. Nathan's hope? Emmys host Neil Patrick Harris rigs the results in favor of Dr. Horrible. We hope so, too.